CA2338792C - Rapidly disintegrable solid preparation - Google Patents
Rapidly disintegrable solid preparation Download PDFInfo
- Publication number
- CA2338792C CA2338792C CA002338792A CA2338792A CA2338792C CA 2338792 C CA2338792 C CA 2338792C CA 002338792 A CA002338792 A CA 002338792A CA 2338792 A CA2338792 A CA 2338792A CA 2338792 C CA2338792 C CA 2338792C
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- CA
- Canada
- Prior art keywords
- weight
- preparation
- parts
- solid preparation
- tablet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 235000019158 vitamin B6 Nutrition 0.000 description 1
- 239000011726 vitamin B6 Substances 0.000 description 1
- 235000019154 vitamin C Nutrition 0.000 description 1
- 239000011718 vitamin C Substances 0.000 description 1
- 235000019166 vitamin D Nutrition 0.000 description 1
- 239000011710 vitamin D Substances 0.000 description 1
- 150000003710 vitamin D derivatives Chemical class 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
- 229940046009 vitamin E Drugs 0.000 description 1
- 229940045997 vitamin a Drugs 0.000 description 1
- 229940011671 vitamin b6 Drugs 0.000 description 1
- 229940046008 vitamin d Drugs 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000000811 xylitol Substances 0.000 description 1
- 235000010447 xylitol Nutrition 0.000 description 1
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 1
- 229960002675 xylitol Drugs 0.000 description 1
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 description 1
Classifications
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- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0053—Mouth and digestive tract, i.e. intraoral and peroral administration
- A61K9/0056—Mouth soluble or dispersible forms; Suckable, eatable, chewable coherent forms; Forms rapidly disintegrating in the mouth; Lozenges; Lollipops; Bite capsules; Baked products; Baits or other oral forms for animals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/20—Pills, tablets, discs, rods
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- A—HUMAN NECESSITIES
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- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/13—Amines
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- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
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- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/715—Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
- A61K31/716—Glucans
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- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/20—Pills, tablets, discs, rods
- A61K9/2004—Excipients; Inactive ingredients
- A61K9/2022—Organic macromolecular compounds
- A61K9/205—Polysaccharides, e.g. alginate, gums; Cyclodextrin
- A61K9/2054—Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/04—Drugs for disorders of the alimentary tract or the digestive system for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants
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- A—HUMAN NECESSITIES
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- A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
- A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
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- A61K9/2004—Excipients; Inactive ingredients
- A61K9/2013—Organic compounds, e.g. phospholipids, fats
- A61K9/2018—Sugars, or sugar alcohols, e.g. lactose, mannitol; Derivatives thereof, e.g. polysorbates
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- A61K9/20—Pills, tablets, discs, rods
- A61K9/2072—Pills, tablets, discs, rods characterised by shape, structure or size; Tablets with holes, special break lines or identification marks; Partially coated tablets; Disintegrating flat shaped forms
- A61K9/2077—Tablets comprising drug-containing microparticles in a substantial amount of supporting matrix; Multiparticulate tablets
- A61K9/2081—Tablets comprising drug-containing microparticles in a substantial amount of supporting matrix; Multiparticulate tablets with microcapsules or coated microparticles according to A61K9/50
Abstract
A rapidly desintegrable solid preparation which comprises (i) a pharmacologically active ingredient, (ii) a sugar and (iii) a low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group. The rapidly disintegrable solid preparation has fast disintegrability, suitable strength and no roughness.
Description
DESCRIPTION
Rapidly Disintegrable Solid Preparation Technical Field The present invention relates to a solid preparation having fast disintegrability in the oral cavity with the existence of saliva, in a little water, or in the stomach particularly a rapidly disintegrable solid preparation which is useful as an orally disintegrable solid preparation.
Background Art It has been desired to develop an orally disintegrable solid preparation which can be easily administered to elders or children without water. As background arts which disclose such a preparation, for example, there are the following background arts.
JP-A-9-48726 discloses an orally rapidly disintegrable preparation produced by wetting in a moldable way on humidifying. It comprises a drug and a material which can retain the shape after molding and drying. As such materials, a sugar, sugar alcohol and a water-soluble polymer material are exemplified.
JP-A-9-71523 discloses a tablet containing a drug, crystalline cellulose, a low-substituted hydroxypropylcellulose and a lubricant. It has fast disintegrability in the oral cavity.
EP-A 839526 discloses a solid pharmaceutical preparation containing a pharmacologically active ingredient, erythritol, crystalline cellulose and a disintegrator.
However, these background arts have not described (i) a pharmacologically active ingredient, (ii) a sugar and (iii) a low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group of the present invention.
Disclosure of Invention There has been desired the development of a rapidly disintegrable solid preparation having fast disintf;grability in the existence of saliva in the oral cavity, in a little water or in the stomach, having suitable strength (hardness) so that it may not be damaged through production processes and distribution, and further having no roughness.
The present invention relates to:
(1) a rapidly disintegrable solid preparation which comprises (i} a pharmacologically active ingredient, (ii) a sugar and (iii) a low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group;
Rapidly Disintegrable Solid Preparation Technical Field The present invention relates to a solid preparation having fast disintegrability in the oral cavity with the existence of saliva, in a little water, or in the stomach particularly a rapidly disintegrable solid preparation which is useful as an orally disintegrable solid preparation.
Background Art It has been desired to develop an orally disintegrable solid preparation which can be easily administered to elders or children without water. As background arts which disclose such a preparation, for example, there are the following background arts.
JP-A-9-48726 discloses an orally rapidly disintegrable preparation produced by wetting in a moldable way on humidifying. It comprises a drug and a material which can retain the shape after molding and drying. As such materials, a sugar, sugar alcohol and a water-soluble polymer material are exemplified.
JP-A-9-71523 discloses a tablet containing a drug, crystalline cellulose, a low-substituted hydroxypropylcellulose and a lubricant. It has fast disintegrability in the oral cavity.
EP-A 839526 discloses a solid pharmaceutical preparation containing a pharmacologically active ingredient, erythritol, crystalline cellulose and a disintegrator.
However, these background arts have not described (i) a pharmacologically active ingredient, (ii) a sugar and (iii) a low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group of the present invention.
Disclosure of Invention There has been desired the development of a rapidly disintegrable solid preparation having fast disintf;grability in the existence of saliva in the oral cavity, in a little water or in the stomach, having suitable strength (hardness) so that it may not be damaged through production processes and distribution, and further having no roughness.
The present invention relates to:
(1) a rapidly disintegrable solid preparation which comprises (i} a pharmacologically active ingredient, (ii) a sugar and (iii) a low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group;
(2) the preparation of the above (1), which is an orally rapidly disintegrable solid preparation;
{3) the preparation of the above (1) or (2), which is a tablet;
(4) the preparation of the above (1), wherein the sugar is a sugar alcohol;
(S) the preparation of the above (4), wherein the sugar alcohol is mannitol or erythritol;
(6) the preparation of the above (1), wherein the sugar is comprised in an amount of 5 to 97 parts by weight per 100 parts by weight of the solid preparation;
(7) the preparation of the above (1), wherein the low-substituted hydroxypropylceilulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyi group is used in an amount of 3 to 50 parts by weight per 100 parts by weight of the solid preparation;
(8) the preparation of the above (1), wherein the pharmacologically active ingredient is lansoprazole;
{9) the preparation of the above (1), wherein the pharmacologically active ingredient is voglibose;
(10) the preparation of the above (1), wherein the pharmacologically active ingredient is manidipine hydrochloride;
(11) the preparation of the above (1), wherein the pharmacologically active ingredient is pioglitazone hydrochloride;
WO 00/06126 PCT/J~I'99104015 {12) the preparation of the above (1), wherein the pharmacologically active ingredient is candesartan cilexetil;
(13) the preparation of the above (3) which comprises fine granules;
(14) the preparation of the above (13), wherein the pharmacologically active ingredient is comprised in the fine granules.
(15) the preparation of the above (14), wherein (i) a sugar and (ii) a low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group are comprised in the solid preparation separately from the fine granules;
(16) the preparation of the above (15), wherein the sugar is in an amount of 5 to 97 parts by weight per 100 parts by weight of the rest of the solid preparation other than the fine granules;
(17) the preparation of the above (15), wherein the low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group :is in an amount of 3 to 50 parts by weight per 100 parts by weight of the rest of the solid preparation other than the fine granules;
(18) use of a low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group for producing a rapidly disintegrable solid preparation comprising a pharmacologically active ingredient and a sugar; and (19) a method for improving fast disintegrability of a solid preparation comprising a pharmacologically active ingredient and a sugar, which is characterized in that a low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group is contained therein.
1) Pharmacologically active ingredient 'The pharmacologically active ingredients used in the present invention are in any condition such as solid, powdery, crystalline, oily and solution conditions. As such pharmacologically active ingredients, for example, one or more ingredients) selected from the group comprising nourishing and cordial agents, antipyretic-anodyne-anti-inflammatory drugs, psychotropics, antianxiety drugs, antidepressants, hypnotic-sedative drugs, spasmolytics, central nervous system drugs, brain metabolism ameliorating agents, brain circulation ameliorating agents, antiepileptics, sympathomimetics, gastrointestinal agents, antacids, antiulcer agents, antitussive-expetorants, antiemetics, respiratory accelerators, bronchodilators, antiallergic drugs, dental buccal drugs, antihistamines, cardiotonies, antiarrythmic drugs, diuretics, antihypertensive agents, vasoconstrictors, coronary vasodilators, peripheral vasodilators, antihypolipidemic agents, cholagogues, antibiotics, chemotherapeutic drugs, antidiabetic agents, drugs for osteoporosis, 10 antirheumatism agents, skeletal muscle relaxants, antivertigos, hormones, alkaloid narcotics, sulfa drugs, arthrifuges, blood coagulation inhibitors, antitumor agents, drugs for Alzheimer's disease and the like are exemplified.
As the nourishing and cordial agents, for instance, vitamins such as vitamin A, vitamin D, vitamin E (such as d-a-tocopherol acetate and the like), vitamin B~
(such as dibenzoylthiamine, fursultiamine hydrochloride and the like), vitamin B2 (such as riboflavin butyrate and the like), vitamin B6 (such as pyridoxine hydrochloride and the like), vitamin C (such as ascorbic acid, sodium L-ascorbate and the like) and vitamin B12 (such as hydroxocobalamin acetate, cyanocobalamin and the like); minerals such as calcium, magnesium, iron and the like; proteins, amino acids, oligosaccharides, crude drugs and the like are exemplified.
As the antipyretic-anodyne-antiinflammatory drugs, for instance, aspirin, acetaminophen, ethenzamide, ibuprofen, diphenhydramine hydrochloride, dl-chlorpheniramine maleate, dihydrocodeine phosphate, noscapine, methylephedrine hydrochloride, phenylpropanolamine hydrochloride, caffeine, anhydrous caffein, 25 serrapeptase, lysozyme chloride, tolfenamic acid, mefenamic acid, sodium diclofenac, flufenamic acid, salicylamide, aminopyrine, ketoprofen, indometacin, bucolome, pentazocine and the like are exemplified.
As the antipsyc:hotics, for instance, chlorpromazine, reserpine and the like are exemplified.
As the antianxiety drugs, for instance, alprazolam, chlordiazepoxide, diazepam and the like are exemplified.
As the antidepressants, for instance, imipramine, maprotiline hydrochloride, amphetamine and the like are exemplified.
As the hypnotic-sedative drugs, for instance, estazolam, nitrazepam, diazepam, perlapine, sodium phenobarbital and the like are exemplified.
As the spasmol5~tics, for instance, scopolamine hydrobromide, di-phenhydramine hydrochloride, papaverine hydrochloride and the like are exemplified.
As the central nervous system drugs, for instance, citicoline and the like are exemplified.
As the brain metabolism ameliorating agents, for instance, meclofenoxate hydrochloride and the like: are exemplified.
As the brain circulation ameliorating agents, for instance, vinpocetine and the like are exemplified.
As the antiepileptics, for instance, phenytoin, carbamazepine and the like are exemplified.
As the sympathomimetics, for instance, isoproterenol hydrochloride and the like are exemplified.
As the gastrointestinal agents, for instance, stomachic-digestives such as diastase, saccharated pepsin, scopolia extract, cellulase AP3, lipase AP and cinnamon oil;
agents for intestinal disorders such as berberine chloride, resistant lactic acid bacterium, Lactobacillus bifidus and the like are exemplified.
As the antacids, for instance, magnesium carbonate, sodium hydrogen-carbonate, magnesium aluminometasilicate, synthetic hydrotalcite, precipitated calcium carbonate, magnesium oxide and the like are exemplified.
As the antiulcer agents, for instance, lansoprazole, omeprazole, rabeprazole, pantoprazole, famotidine, cimetidine, ranitidine hydrochloride and the like are exemplified.
As the antitussive-expetorants, for instance, chloperastine hydrochloride, dextromethorphan hydrobromide, theophylline, potassium guaiacolsulfonate, guaiafenesin, codeine phosphate and the like are exemplified.
As the antiemetics, for instance, difenidol hydrochloride, metoclopramide and the like are exemplified.
$ As the respiratory accelerators, for instance, levallorphan tartrate and the like are exemplified.
As the bronchodilators, for instance, theophylline, salbutanol sulfate and the like are exemplified.
As the antiallergic drugs, for instance, amlexanox, seratrodast and the like are exemplified.
As the dental buccal drugs, for instance, oxytetracycline, triamcinolone acetonide, chlorhexidine hydrochloride, lidocaine and the like are exemplified.
As the antihistamines, for instance, diphenhydramine hydrochloride, promethazine, isothipendyl hydrochloride, dl-chlorpheniramine maleate and the like are exemplified.
As the cardiotonics, for instance, caffeine, digoxin and the like are exemplified.
As the antiarrythmic drugs, for instance, procainamide hydrochloride, propranolol hydrochloride, pindolol and the like are exemplified.
As the diuretics, for instance, isosorbide, furosemide, thiazides such as HCTZ
and the like are exemplified.
As the antihypertensive agents, for instance, delapril hydrochloride, captopril, hexamethonium bromide, hydrazine hydrochloride, labetalol hydrochloride, manidipine hydrochloride, candesartan cilexetil, methyldopa, losartan, valsartan, eprosartan, irbesartan, tasosartan, te'.lmisartan, and the like are exemplified.
As the vasoconstrictors, for instance, phenylephrine hydrochloride and the like are exemplified.
As the coronary vasodilators, for instance, carbocromen hydrochloride, molsidomine, verapamil hydrochloride and the like are exemplified.
As the peripheral vasodilators, for instance, cinnarizine and the like are WO 00/06126 PCT/,rP99/04015 exemplified.
As the antihypolipidemic agents, for instance, sodium cerivastatin , simvastatin, sodium pravastatin and the like are exemplified.
As the cholagogues, for instance, dehydrocholic acid, trepibutone and the like are exemplified.
As the antibiotics, for instance, cephems such as cefalexin, cefaclor, amoxicillin, pivmecillinam hydrochloride, cefotiam hexetyl hydrochloride, cefadroxil, cefixime, cefditoren pivoxil, cefteram pivoxyl, cefpodoxime proxetil, cefotiam dihydrochloride, cefozopran hydrochloride, cefmenoxime hemihydrochloride, sodium cefsulodin ; synthetic antibacterial agents such as ampicillin, ciclacillin, sodium sulbenicillin , nalidixic acid and enoxacin; monobactams such as sodium carumonam;
penems; carbapenems and the like are exemplified.
As the chemotherapeutic drugs, for instance, sulfamethizole, sulfamethizole hydrochloride, thiazosulfone and the like are exemplified.
As the antidiabetic agents, for instance, tolbutamide, voglibose, pioglitazone hydrochloride , glibenclamide, troglitazone, rosiglitazone maleate, acarbose, miglitol, emigitate and the like are exemplified.
As the drugs for osteoporosis, for instance, ipriflavone and the like are exemplified.
As the skeletal muscle relaxants, for instance, methocarbamol and the like are exemplified.
As the antivertigos, for instance, meclizine hydrochloride, dimenhydrinate and the like are exemplified.
As the antirheumatism agents, for instance, methotrexate, bucillamine, and the like are exemplified.
As the hormones, for instance, sodium liothyronine, dexamethasone sodium phosphate, prednisolone, oxendolone, leuprorelin acetate and the like are exemplified.
As the alkaloid narcotics, for instance, opium, morphine hydrochloride, ipecac, oxycodone hydrochloride, opium alkaloids hydrochlorides, cocaine hydrochloride and the like are exemplified.
As the sulfa drugs, for instance, sulfamine, sulfisomidine, sulfamethizole and the like are exemplified.
As the arthrifuges, for instance, allopurinol, colchicine and the like are exemplified.
As the blood coagulation inhibitors, for instance, dicoumarol and the like are exemplified.
As the antitumor agents, for instance, 5-fluorouracil, uracil, mitomycin and the like are exemplified.
As the drugs for Alzheimer's disease, for instance, idebenone, vinpocetine and the like are exemplified.
Among the above pharmacologically active ingredients, nourishing and cordial agents, antipyretic-anodyne-antiinflammatory drugs, hypnotic-sedative drugs, central nervous system drugs, gastrointestinal agents, antiulcer agents, antitussive-expetorants, antiallergic drugs, antiarrhythmic drugs, diuretics, antihypertensive agents, vasoconstrictors, coronary vasodilators, antihypolipidemic agents, antidiabetic agents, drugs for osteoporosis, skeletal muscle relaxants, antivertigos and the like are preferably used.
In the present invention, the pharmacologically active ingredients preferably used are antiulcer agents such as lansoprazole; antidiabetic agents such as voglibose and pioglitazone hydrochloride; and antihypertensive agents such as manidipine hydrochloride and candesartan cilexetil and the like are exemplified.
Two or more pharmacologically active ingredients can be optionally used in an admixture in a rapidly disintegrable solid preparation of this invention.
The pharmacologically active ingredient is optionally diluted by the diluents generally used in the fields of medical treatment and food. In addition, it is optionally treated for the purpose of masking the bitterness of the pharmacologically active ingredient.
The above pharmacologically active ingredient is used in an amount of, for example, 0.01 to 70 parts by weight, preferably 0.02 to 50 parts by weight, more preferably 0.05 to 30 parts by weight, per 100 parts by weight of the solid preparation.
2) Sugar As the sugars used in the present invention, for example, sugar, starch sugar, lactose, honey and sugar alcohol are exemplified. Such sugars are optionally used in an admixture thereof with suitable ratio.
As the sugar, for example, sucrose, coupling sugar, fructo-oligosaccharide, palatinose are exemplified.
As the starch sugar, for example, glucose, maltose, powdered sugar, starch syrup, fructose and fruit sugar and the like are exemplified.
As the lactose, for example, lactose, isomerized lactose (lactulose), reduced lactose (lactitol) and the like are exemplified.
As the honey, various kinds of honey which are generally edible are exemplified.
As the sugar alcohol, for example, sorbitol, mannitol, maltitol, reduced starch saccharide, xylitol, reduced paratinose, erythritol, and the like are exemplified. As erythritol is optionally one. used which is produced by fermentation using glucose as a starting material with yeast in general and has at most 50 mesh of the particle size. Such erythritol is commercially available [for example, from Nikken Chemicals Co., Ltd.
(Japan)).
The above sugars are preferably water-soluble sugars. The water-soluble sugars mean any water-soluble sugars which need at most 30 ml of water when 1 g of sugar is added into water and then dissolved within 30 minutes at 20°C
by strongly shaking every 5 minutes for 30 seconds.
In the present invention, the sugar is preferably the sugar alcohol, more preferably mannitol or erythritol.
In order to obtain sufficient strength of the preparation and sufficiently fast disintegrability, the sugar is used in an amount of ~ to 97 parts by weight, preferably 10 to 90 parts by weight, per 100 parts by weight of the solid preparation in case of the solid preparation not comprising fine granules. On the other hand, the sugar is used in an amount of 5 to 97 parts by weight, preferably 10 to 90 parts by weight, per 100 parts by weight of the rest of the solid preparation other than the fine granules in case of the solid preparation comprising fine granules.
For example, mannitol or erythritol is usually used in an amount of S to 90 weight %, preferably 10 to 80 weight %, more preferably 20 to 80 weight %, especially preferably 50 to 80 weight °~o relative to the whole solid preparation in case of the solid preparation not comprising fine granules. On the other hand, mannitol or erythritol is usually used in an amount of S to 90 weight %, preferably 10 to 80 weight %, more preferably 20 to 80 weight o,~ , especially preferably 50 to 80 weight %
relative to the rest of the solid preparation other than the fine granules in case of the solid preparation comprising fine granules.
3) Low-substituted Hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group (L-HPC) 3-1) Production of L-HPC
The "low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group (hereinafter, optionally referred to L-HPC)" used in the present invention can be produced in accordance with well-known methods, for example, methods described in JP-B-~7-53100 or its analogous methods thereof.
At first, alkaline cellulose containing free alkaline and propylene oxide are reacted to obtain the crude :low-substituted hydroxypropylcellulose containing free alkaline.
Concretely, for example, raw material pulp such as wood pulp and cotton leader is immersed in 10 to SO °~o concentration of aqueous solution of sodium hydroxide, and pressed to obtain the alkaline cellulose of which NaOH/cellulose ratio is 0.1 to 1.2 (ratio by weight). Next, the crude low-substituted hydroxypropylcellulose containing free alkaline is obtained by reacting the resulting alkaline cellulose and propylene oxide with stirring at 20 to 90°C for 2 to 8 hours. Propylene oxide is used in an amount so that the content of hydroxypropoxyl group in the desired low-substituted hydroxypropylcellulose can be 5% or more by weight to less than 7 % by weight.
$ The crude low-substituted hydroxypropylcellulose containing free alkaline is dispersed in water or hot water containing 5 to 80 % of acid which is need to neutralize the all amount of alkaline, and a part of the crude low-substituted hydroxypropylcellulose containing free alkaline is dissolved therein. Further, acid is added to neutralize the remained alkaline.
After the neutralization, processes such as drainage, drying and grinding are performed in accordance with the conventional method to obtain the desired low-substituted hydroxypropylcellulose.
3-2) Property of L-HPC
The particle diameter of L-HPC used in the present invention is, for example, to 60 wm as average particle diameter. Preferably, it is 10 to 40 pm as average particle diameter.
In the above ranges, in case that L-HPC having relatively large particle diameter (for example, I: HPC having 26 to 40 pm of average particle diameter) is used, a pharmaceutical preparation being superior in disintegrability can be produced.
On the other hand, in case that L-HPC having relatively small particle diameter (for example, L-HPC having 10 to 25 p,m of average particle diameter) is used, the pharmaceutical preparation being superior in strength of the preparation can be produced.
Accordingly, the; particle diameter of L-HPC can be suitably selected according to the character of the desired pharmaceutical preparation.
In order to obtain sufficient strength of the preparation and sufficiently fast disintegrability, the L-HPC in the present invention is used in an amount of 3 to 50 parts by weight, preferably 5 to 40 parts by weight, per 100 parts by weight of the solid preparation in case of the solid preparation not comprising fine granules. On the other ll 6 PCTLrP99/04015 hand, the IrHPC in the present invention is used in an amount of 3 to 50 parts by weight, preferably 5 to 40 parts by weight, per 100 parts by weight of the rest of the solid preparation other than the fine granules in case of the solid preparation comprising fine granules.
As mentioned at>ove, by using LrHPC, it becomes possible to improve fast disintegrability, particularly the orally fast disintegrability, of the solid preparation containing the pharmacologically active ingredient and the sugar.
4) Dosage Forms As the dosage form of the rapidly disintegrable solid preparation of the present invention, for example, tablet, granule, fine granule and the like, preferably tablet is exemplified. Among rapidly disintegrable tablets such as an orally disintegrable tablet and a tablet disintegrable in water, the orally disintegrable tablet is preferable.
5) Other Ingredients Unless fast disintegrability (particularly, fast disintegrability in the oral cavity) or strength of the preparation is interfered with, the rapidly disintegrable solid preparation of the present invention may further contain a variety of additives which are commonly used in the manufacture of preparations in general dosage forms. Amount of such additives to be used is one commonly used in the manufacture of preparations in general dosage forms. As such additives, for example, binders, acids, foaming agents, artificial sweeteners, flavorants, lubricants, colorants, stabilizers, excipients, disintegrators and the like are exemplified.
As the above binders, for example, hydroxypropylcellulose, hydroxypropylmethylcellulose, crystalline cellulose, pregelatinized starch, polyvinylpyrrolidone, guns arabic powder, gelatin, pullulan and the like are exemplified.
These two or more binders can be used in an admixture in a given ratio. The use of crystalline cellulose as the binder provides the solid preparation which exhibits more excellent strength of the preparation while retaining excellent fast disintegrability in the 242'05-1259 oral cavity. As the crystalline cellulose, microcrystalline cellulose is also included.
The "crystalline cellulose" includes a refined one having partially cr -cellulose depolymerization. As crystalline cellulose, for example, CEOLUS KG 801, Avicel*PH
101, Avicel PH 102, Avicel PH 301, Avicel*PH 302, Avicel*RC-A591 NF
(crystalline cellulose ~ carmellose sodium), Aviceh'RC-591 (crystalline cellulose ~
carmellose sodium)and the like are concretely exemplified. Among them, CEOLUS' KG $01 referred to as highly moldable crystalline cellulose is preferably used. Such crystalline celIuIoses are optionally used in an admixture thereof with suitable ratio.
Such crystalline celluloses can be commercially available (manufactured by Asahi Chemical Industry Co., Ltd. (Japan)). The crystalline cellulose is used in an amount of, for example, 1 to 50 parts by weight, preferably 2 to 40 parts by weight, more preferably 2 to parts by weight, per 100 parts by weight of the solid preparation in case of the solid preparation not comprising fine granules. Likewise, the crystalline cellulose is used in an amount of, for example, 1 to 50 pans by weight, preferably 2 to 40 parts by weight, 15 more preferably 2 to 20 parts by weight, per 100 parts by weight of the solid preparation apart from fine granules in case of the solid preparation comprising fine granules.
As the acids, for example, citric acid, tartaric acid, malic acid and the like are exemplified.
As the foaming agents, for example, sodium bicarbonate and the like are 20 exemplified.
As the artificial sweeteners, for example, saccharin sodium, dipotassium glycyrrhizinate, aspartame, stevia, thaumatin and the like are exemplified.
As the flavorants, for example, lemon, lemon lime, orange; mentol, strawberry and the like are exemplified.
As the lubricants, for example, magnesium stearate, sucrose fatty acid ester, polyethylene glycol, talc, stearic acid and the like are exemplified. Use of polyethylene glycol as the lubricant provides the stable solid preparation of which the decomposition over time of the pharmacologically active ingredient is controlled. At that time, polyethylene glycol is used in an amount of, for example, 0.01 to 10 parts by weight, *Trade-mark 13 242'05-1259 preferably 0.1 to 5 parts by weight, per 100 parts by weight of the solid preparation in case of the solid preparation not comprising fine granules. Likewise, polyethylene glycol is used in an amount of; for example, 0.01 to 10 parts by weight, preferably 0.1 to S parts by weight, per 100 parts by weight of the solid preparation apart from fine granules in case of the solid preparation comprising fine granules.
As the colorants, for example, various food colorants such as Food Yellow No.
5, Food Red No.2, Food Blue No. 2 and the like; food lakes, red iron oxide and the like are exemplified.
As the stabilizers, for example, a basic substance in the case of the basic pharmacologically active ingredient and an acidic substance in the case of the acidic pharmacologically active ingredient are exemplified.
As the excipients, for example, lactose, sucrose, D-mannitol, starch, corn starch, crystalline cellulose, light silicic anhydride, titanium oxide and the like are exemplified.
As the disintegrators, for example, disintegrators called super disintegrators such as crospovidone [manufactured by ISP Inc. (U.S.A.), BASF (Germany)], croscarmellose sodium [FMC-Asahi Chemical Industry Co., Ltd. (Japan)], carmeliose calcium [Gotoku Chemical (Yakuhin), (Japan)]; hydroxypropylcellulose; how-substituted hydroxypropylcellulose; carboxymethylstarch sodium [Matsutani Chemical Co., Ltd.
(Japan)]; corn starch and the like are exemplified. Among them, crospovidone is preferably used. Such two or more disintegrators are optionally used in an admixture thereof with suitable ratio.
As crospovidone, any cross-linked homopolymer such as 1-ethenyl-2-pyrrolidinone homopolymer may be used, and usually crospovidone having a molecular weight of at least 1,000,000 is used. As crospovidone which is commercially available, for example, Cross-linked povidone, Kollidone CL [manufactured by BASF
(Germany)], Polyplasdone XL, Polyplasdone XL-10, INF-10 [manufactured by ISP Inc., (U.S.A.)], polyvinylpolypyrrolidone, PVPP, 1-vinyl-2-pyrrolidinone homopolymer and the like are concretely exemplified.
Two or more of these disintegrants can be as a mixture in a given ratio. For *Trade-mark 14 example, (i) crospovidone solely, or (ii) crospovidone and another disintegrant(s) is preferably used.
Such disintegrator is used in an amount of, for example, 0.1 to 20 parts by weight, preferably 1 to 10 parts by weight, more preferably 3 to 7 parts by weight, per 100 parts by weight of the solid preparation in case of the solid preparation not comprising fine granules. Likewise, such disintegrator is used in an amount of, for example, 0.1 to 20 parts by weight, preferably 1 to 10 parts by weight, more preferably 3 to 7 parts by weight, per 100 parts by weight of the rest of the solid preparation other than the fine granules in case of the solid preparation comprising fine granules.
5-1) Other Ingredients for Dosage Forms , especially of Acid-labile Pharmacologically Active Ingredient In case that the pharmacologically active ingredient is an acid-labile one such as lansoprazole, omeprazole, rapeprazole, pantoprazole and the like, a basic inorganic salt is .
preferably incorporated to stabilize the pharmacologically active ingredient in the solid preparation.
The "basic inorganic salt" includes, for example, a basic inorganic salt of sodium, potassium, magnesium and/or calcium, preferably a basic inorganic salt of magnesium and/or calcium. Among others, preferred is a basic inorganic salt of magnesium.
The basic inorganic salt of sodium includes, for example, sodium carbonate, sodium hydrogencarbonate, sodium phosphate, sodium hydrogenphosphate and the like.
The basic inorganic salt of potassium includes, for example, potassium carbonate, potassium hydrogencarbonate, potassium phosphate, potassium hydrogenphosphate, potassium sodium carbonate and the like.
The basic inorganic salt of magnesium includes, for example, heavy magnesium carbonate, magnesium carbonate, magnesium oxide, magnesium hydroxide, magnesium metasilicate aluminate, magnesium silicate aluminate, magnesium silicate, magnesium aluminate, synthetic hydrotalcite (Mg6Al2(OH)16 ~ C03 ~ 4H20], aluminum magnesium hydroxide [2.SMg0 ~ A1203 ~ xH2(~] and the like. Among others, preferred is heavy magnesium carbonate, magnesium carbonate, magnesium oxide, magnesium hydroxide and the like.
The basic inorganic: salt of calcium includes, for example, precipitated calcium carbonate, calcium hydroxide, and the like.
The preferable examples of the "basic inorganic salt" are magnesium basic inorganic salt, and more preferable examples include heavy magnesium carbonate, magnesium carbonate, magnesium oxide, magnesium hydroxide, and the like.
Such basic inorganic salt of magnesium or calcium, and the like has a basic pH
(not less than 7) when it is in, the form of a 1 % aqueous solution or suspension.
Two or more of these basic inorganic salts (preferably a basic inorganic salt of magnesium, a basic inorganic salt of calcium, and the like) can be used as a mixture in a given ratio. The amount of the basic inorganic salt to be used is appropriately selected depending on the kind of the. basic inorganic salt and is, for instance, 0.3 to 200 parts by weight, preferably 1 to 100 parts by weight, more preferably 10 to 50 parts by weight, especially preferably 20 to 40 parts by weight relative to the pharmacologically active ingredient.
6) Dosage Form containing Fine Granules (e.g., Tablet) As was mentioned before, the rapidly disintegrable preparation of the present invention can be used in any solid dosage form such as tablet, granule, fine granule and the like . In case that it is <i tablet, the tablet can contain fine granules.
The fine granules may contain the pharmacologically active ingredient. These dosage forms can be prepared by a conventional method or its analogous method.
(S) the preparation of the above (4), wherein the sugar alcohol is mannitol or erythritol;
(6) the preparation of the above (1), wherein the sugar is comprised in an amount of 5 to 97 parts by weight per 100 parts by weight of the solid preparation;
(7) the preparation of the above (1), wherein the low-substituted hydroxypropylceilulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyi group is used in an amount of 3 to 50 parts by weight per 100 parts by weight of the solid preparation;
(8) the preparation of the above (1), wherein the pharmacologically active ingredient is lansoprazole;
{9) the preparation of the above (1), wherein the pharmacologically active ingredient is voglibose;
(10) the preparation of the above (1), wherein the pharmacologically active ingredient is manidipine hydrochloride;
(11) the preparation of the above (1), wherein the pharmacologically active ingredient is pioglitazone hydrochloride;
WO 00/06126 PCT/J~I'99104015 {12) the preparation of the above (1), wherein the pharmacologically active ingredient is candesartan cilexetil;
(13) the preparation of the above (3) which comprises fine granules;
(14) the preparation of the above (13), wherein the pharmacologically active ingredient is comprised in the fine granules.
(15) the preparation of the above (14), wherein (i) a sugar and (ii) a low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group are comprised in the solid preparation separately from the fine granules;
(16) the preparation of the above (15), wherein the sugar is in an amount of 5 to 97 parts by weight per 100 parts by weight of the rest of the solid preparation other than the fine granules;
(17) the preparation of the above (15), wherein the low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group :is in an amount of 3 to 50 parts by weight per 100 parts by weight of the rest of the solid preparation other than the fine granules;
(18) use of a low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group for producing a rapidly disintegrable solid preparation comprising a pharmacologically active ingredient and a sugar; and (19) a method for improving fast disintegrability of a solid preparation comprising a pharmacologically active ingredient and a sugar, which is characterized in that a low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group is contained therein.
1) Pharmacologically active ingredient 'The pharmacologically active ingredients used in the present invention are in any condition such as solid, powdery, crystalline, oily and solution conditions. As such pharmacologically active ingredients, for example, one or more ingredients) selected from the group comprising nourishing and cordial agents, antipyretic-anodyne-anti-inflammatory drugs, psychotropics, antianxiety drugs, antidepressants, hypnotic-sedative drugs, spasmolytics, central nervous system drugs, brain metabolism ameliorating agents, brain circulation ameliorating agents, antiepileptics, sympathomimetics, gastrointestinal agents, antacids, antiulcer agents, antitussive-expetorants, antiemetics, respiratory accelerators, bronchodilators, antiallergic drugs, dental buccal drugs, antihistamines, cardiotonies, antiarrythmic drugs, diuretics, antihypertensive agents, vasoconstrictors, coronary vasodilators, peripheral vasodilators, antihypolipidemic agents, cholagogues, antibiotics, chemotherapeutic drugs, antidiabetic agents, drugs for osteoporosis, 10 antirheumatism agents, skeletal muscle relaxants, antivertigos, hormones, alkaloid narcotics, sulfa drugs, arthrifuges, blood coagulation inhibitors, antitumor agents, drugs for Alzheimer's disease and the like are exemplified.
As the nourishing and cordial agents, for instance, vitamins such as vitamin A, vitamin D, vitamin E (such as d-a-tocopherol acetate and the like), vitamin B~
(such as dibenzoylthiamine, fursultiamine hydrochloride and the like), vitamin B2 (such as riboflavin butyrate and the like), vitamin B6 (such as pyridoxine hydrochloride and the like), vitamin C (such as ascorbic acid, sodium L-ascorbate and the like) and vitamin B12 (such as hydroxocobalamin acetate, cyanocobalamin and the like); minerals such as calcium, magnesium, iron and the like; proteins, amino acids, oligosaccharides, crude drugs and the like are exemplified.
As the antipyretic-anodyne-antiinflammatory drugs, for instance, aspirin, acetaminophen, ethenzamide, ibuprofen, diphenhydramine hydrochloride, dl-chlorpheniramine maleate, dihydrocodeine phosphate, noscapine, methylephedrine hydrochloride, phenylpropanolamine hydrochloride, caffeine, anhydrous caffein, 25 serrapeptase, lysozyme chloride, tolfenamic acid, mefenamic acid, sodium diclofenac, flufenamic acid, salicylamide, aminopyrine, ketoprofen, indometacin, bucolome, pentazocine and the like are exemplified.
As the antipsyc:hotics, for instance, chlorpromazine, reserpine and the like are exemplified.
As the antianxiety drugs, for instance, alprazolam, chlordiazepoxide, diazepam and the like are exemplified.
As the antidepressants, for instance, imipramine, maprotiline hydrochloride, amphetamine and the like are exemplified.
As the hypnotic-sedative drugs, for instance, estazolam, nitrazepam, diazepam, perlapine, sodium phenobarbital and the like are exemplified.
As the spasmol5~tics, for instance, scopolamine hydrobromide, di-phenhydramine hydrochloride, papaverine hydrochloride and the like are exemplified.
As the central nervous system drugs, for instance, citicoline and the like are exemplified.
As the brain metabolism ameliorating agents, for instance, meclofenoxate hydrochloride and the like: are exemplified.
As the brain circulation ameliorating agents, for instance, vinpocetine and the like are exemplified.
As the antiepileptics, for instance, phenytoin, carbamazepine and the like are exemplified.
As the sympathomimetics, for instance, isoproterenol hydrochloride and the like are exemplified.
As the gastrointestinal agents, for instance, stomachic-digestives such as diastase, saccharated pepsin, scopolia extract, cellulase AP3, lipase AP and cinnamon oil;
agents for intestinal disorders such as berberine chloride, resistant lactic acid bacterium, Lactobacillus bifidus and the like are exemplified.
As the antacids, for instance, magnesium carbonate, sodium hydrogen-carbonate, magnesium aluminometasilicate, synthetic hydrotalcite, precipitated calcium carbonate, magnesium oxide and the like are exemplified.
As the antiulcer agents, for instance, lansoprazole, omeprazole, rabeprazole, pantoprazole, famotidine, cimetidine, ranitidine hydrochloride and the like are exemplified.
As the antitussive-expetorants, for instance, chloperastine hydrochloride, dextromethorphan hydrobromide, theophylline, potassium guaiacolsulfonate, guaiafenesin, codeine phosphate and the like are exemplified.
As the antiemetics, for instance, difenidol hydrochloride, metoclopramide and the like are exemplified.
$ As the respiratory accelerators, for instance, levallorphan tartrate and the like are exemplified.
As the bronchodilators, for instance, theophylline, salbutanol sulfate and the like are exemplified.
As the antiallergic drugs, for instance, amlexanox, seratrodast and the like are exemplified.
As the dental buccal drugs, for instance, oxytetracycline, triamcinolone acetonide, chlorhexidine hydrochloride, lidocaine and the like are exemplified.
As the antihistamines, for instance, diphenhydramine hydrochloride, promethazine, isothipendyl hydrochloride, dl-chlorpheniramine maleate and the like are exemplified.
As the cardiotonics, for instance, caffeine, digoxin and the like are exemplified.
As the antiarrythmic drugs, for instance, procainamide hydrochloride, propranolol hydrochloride, pindolol and the like are exemplified.
As the diuretics, for instance, isosorbide, furosemide, thiazides such as HCTZ
and the like are exemplified.
As the antihypertensive agents, for instance, delapril hydrochloride, captopril, hexamethonium bromide, hydrazine hydrochloride, labetalol hydrochloride, manidipine hydrochloride, candesartan cilexetil, methyldopa, losartan, valsartan, eprosartan, irbesartan, tasosartan, te'.lmisartan, and the like are exemplified.
As the vasoconstrictors, for instance, phenylephrine hydrochloride and the like are exemplified.
As the coronary vasodilators, for instance, carbocromen hydrochloride, molsidomine, verapamil hydrochloride and the like are exemplified.
As the peripheral vasodilators, for instance, cinnarizine and the like are WO 00/06126 PCT/,rP99/04015 exemplified.
As the antihypolipidemic agents, for instance, sodium cerivastatin , simvastatin, sodium pravastatin and the like are exemplified.
As the cholagogues, for instance, dehydrocholic acid, trepibutone and the like are exemplified.
As the antibiotics, for instance, cephems such as cefalexin, cefaclor, amoxicillin, pivmecillinam hydrochloride, cefotiam hexetyl hydrochloride, cefadroxil, cefixime, cefditoren pivoxil, cefteram pivoxyl, cefpodoxime proxetil, cefotiam dihydrochloride, cefozopran hydrochloride, cefmenoxime hemihydrochloride, sodium cefsulodin ; synthetic antibacterial agents such as ampicillin, ciclacillin, sodium sulbenicillin , nalidixic acid and enoxacin; monobactams such as sodium carumonam;
penems; carbapenems and the like are exemplified.
As the chemotherapeutic drugs, for instance, sulfamethizole, sulfamethizole hydrochloride, thiazosulfone and the like are exemplified.
As the antidiabetic agents, for instance, tolbutamide, voglibose, pioglitazone hydrochloride , glibenclamide, troglitazone, rosiglitazone maleate, acarbose, miglitol, emigitate and the like are exemplified.
As the drugs for osteoporosis, for instance, ipriflavone and the like are exemplified.
As the skeletal muscle relaxants, for instance, methocarbamol and the like are exemplified.
As the antivertigos, for instance, meclizine hydrochloride, dimenhydrinate and the like are exemplified.
As the antirheumatism agents, for instance, methotrexate, bucillamine, and the like are exemplified.
As the hormones, for instance, sodium liothyronine, dexamethasone sodium phosphate, prednisolone, oxendolone, leuprorelin acetate and the like are exemplified.
As the alkaloid narcotics, for instance, opium, morphine hydrochloride, ipecac, oxycodone hydrochloride, opium alkaloids hydrochlorides, cocaine hydrochloride and the like are exemplified.
As the sulfa drugs, for instance, sulfamine, sulfisomidine, sulfamethizole and the like are exemplified.
As the arthrifuges, for instance, allopurinol, colchicine and the like are exemplified.
As the blood coagulation inhibitors, for instance, dicoumarol and the like are exemplified.
As the antitumor agents, for instance, 5-fluorouracil, uracil, mitomycin and the like are exemplified.
As the drugs for Alzheimer's disease, for instance, idebenone, vinpocetine and the like are exemplified.
Among the above pharmacologically active ingredients, nourishing and cordial agents, antipyretic-anodyne-antiinflammatory drugs, hypnotic-sedative drugs, central nervous system drugs, gastrointestinal agents, antiulcer agents, antitussive-expetorants, antiallergic drugs, antiarrhythmic drugs, diuretics, antihypertensive agents, vasoconstrictors, coronary vasodilators, antihypolipidemic agents, antidiabetic agents, drugs for osteoporosis, skeletal muscle relaxants, antivertigos and the like are preferably used.
In the present invention, the pharmacologically active ingredients preferably used are antiulcer agents such as lansoprazole; antidiabetic agents such as voglibose and pioglitazone hydrochloride; and antihypertensive agents such as manidipine hydrochloride and candesartan cilexetil and the like are exemplified.
Two or more pharmacologically active ingredients can be optionally used in an admixture in a rapidly disintegrable solid preparation of this invention.
The pharmacologically active ingredient is optionally diluted by the diluents generally used in the fields of medical treatment and food. In addition, it is optionally treated for the purpose of masking the bitterness of the pharmacologically active ingredient.
The above pharmacologically active ingredient is used in an amount of, for example, 0.01 to 70 parts by weight, preferably 0.02 to 50 parts by weight, more preferably 0.05 to 30 parts by weight, per 100 parts by weight of the solid preparation.
2) Sugar As the sugars used in the present invention, for example, sugar, starch sugar, lactose, honey and sugar alcohol are exemplified. Such sugars are optionally used in an admixture thereof with suitable ratio.
As the sugar, for example, sucrose, coupling sugar, fructo-oligosaccharide, palatinose are exemplified.
As the starch sugar, for example, glucose, maltose, powdered sugar, starch syrup, fructose and fruit sugar and the like are exemplified.
As the lactose, for example, lactose, isomerized lactose (lactulose), reduced lactose (lactitol) and the like are exemplified.
As the honey, various kinds of honey which are generally edible are exemplified.
As the sugar alcohol, for example, sorbitol, mannitol, maltitol, reduced starch saccharide, xylitol, reduced paratinose, erythritol, and the like are exemplified. As erythritol is optionally one. used which is produced by fermentation using glucose as a starting material with yeast in general and has at most 50 mesh of the particle size. Such erythritol is commercially available [for example, from Nikken Chemicals Co., Ltd.
(Japan)).
The above sugars are preferably water-soluble sugars. The water-soluble sugars mean any water-soluble sugars which need at most 30 ml of water when 1 g of sugar is added into water and then dissolved within 30 minutes at 20°C
by strongly shaking every 5 minutes for 30 seconds.
In the present invention, the sugar is preferably the sugar alcohol, more preferably mannitol or erythritol.
In order to obtain sufficient strength of the preparation and sufficiently fast disintegrability, the sugar is used in an amount of ~ to 97 parts by weight, preferably 10 to 90 parts by weight, per 100 parts by weight of the solid preparation in case of the solid preparation not comprising fine granules. On the other hand, the sugar is used in an amount of 5 to 97 parts by weight, preferably 10 to 90 parts by weight, per 100 parts by weight of the rest of the solid preparation other than the fine granules in case of the solid preparation comprising fine granules.
For example, mannitol or erythritol is usually used in an amount of S to 90 weight %, preferably 10 to 80 weight %, more preferably 20 to 80 weight %, especially preferably 50 to 80 weight °~o relative to the whole solid preparation in case of the solid preparation not comprising fine granules. On the other hand, mannitol or erythritol is usually used in an amount of S to 90 weight %, preferably 10 to 80 weight %, more preferably 20 to 80 weight o,~ , especially preferably 50 to 80 weight %
relative to the rest of the solid preparation other than the fine granules in case of the solid preparation comprising fine granules.
3) Low-substituted Hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group (L-HPC) 3-1) Production of L-HPC
The "low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group (hereinafter, optionally referred to L-HPC)" used in the present invention can be produced in accordance with well-known methods, for example, methods described in JP-B-~7-53100 or its analogous methods thereof.
At first, alkaline cellulose containing free alkaline and propylene oxide are reacted to obtain the crude :low-substituted hydroxypropylcellulose containing free alkaline.
Concretely, for example, raw material pulp such as wood pulp and cotton leader is immersed in 10 to SO °~o concentration of aqueous solution of sodium hydroxide, and pressed to obtain the alkaline cellulose of which NaOH/cellulose ratio is 0.1 to 1.2 (ratio by weight). Next, the crude low-substituted hydroxypropylcellulose containing free alkaline is obtained by reacting the resulting alkaline cellulose and propylene oxide with stirring at 20 to 90°C for 2 to 8 hours. Propylene oxide is used in an amount so that the content of hydroxypropoxyl group in the desired low-substituted hydroxypropylcellulose can be 5% or more by weight to less than 7 % by weight.
$ The crude low-substituted hydroxypropylcellulose containing free alkaline is dispersed in water or hot water containing 5 to 80 % of acid which is need to neutralize the all amount of alkaline, and a part of the crude low-substituted hydroxypropylcellulose containing free alkaline is dissolved therein. Further, acid is added to neutralize the remained alkaline.
After the neutralization, processes such as drainage, drying and grinding are performed in accordance with the conventional method to obtain the desired low-substituted hydroxypropylcellulose.
3-2) Property of L-HPC
The particle diameter of L-HPC used in the present invention is, for example, to 60 wm as average particle diameter. Preferably, it is 10 to 40 pm as average particle diameter.
In the above ranges, in case that L-HPC having relatively large particle diameter (for example, I: HPC having 26 to 40 pm of average particle diameter) is used, a pharmaceutical preparation being superior in disintegrability can be produced.
On the other hand, in case that L-HPC having relatively small particle diameter (for example, L-HPC having 10 to 25 p,m of average particle diameter) is used, the pharmaceutical preparation being superior in strength of the preparation can be produced.
Accordingly, the; particle diameter of L-HPC can be suitably selected according to the character of the desired pharmaceutical preparation.
In order to obtain sufficient strength of the preparation and sufficiently fast disintegrability, the L-HPC in the present invention is used in an amount of 3 to 50 parts by weight, preferably 5 to 40 parts by weight, per 100 parts by weight of the solid preparation in case of the solid preparation not comprising fine granules. On the other ll 6 PCTLrP99/04015 hand, the IrHPC in the present invention is used in an amount of 3 to 50 parts by weight, preferably 5 to 40 parts by weight, per 100 parts by weight of the rest of the solid preparation other than the fine granules in case of the solid preparation comprising fine granules.
As mentioned at>ove, by using LrHPC, it becomes possible to improve fast disintegrability, particularly the orally fast disintegrability, of the solid preparation containing the pharmacologically active ingredient and the sugar.
4) Dosage Forms As the dosage form of the rapidly disintegrable solid preparation of the present invention, for example, tablet, granule, fine granule and the like, preferably tablet is exemplified. Among rapidly disintegrable tablets such as an orally disintegrable tablet and a tablet disintegrable in water, the orally disintegrable tablet is preferable.
5) Other Ingredients Unless fast disintegrability (particularly, fast disintegrability in the oral cavity) or strength of the preparation is interfered with, the rapidly disintegrable solid preparation of the present invention may further contain a variety of additives which are commonly used in the manufacture of preparations in general dosage forms. Amount of such additives to be used is one commonly used in the manufacture of preparations in general dosage forms. As such additives, for example, binders, acids, foaming agents, artificial sweeteners, flavorants, lubricants, colorants, stabilizers, excipients, disintegrators and the like are exemplified.
As the above binders, for example, hydroxypropylcellulose, hydroxypropylmethylcellulose, crystalline cellulose, pregelatinized starch, polyvinylpyrrolidone, guns arabic powder, gelatin, pullulan and the like are exemplified.
These two or more binders can be used in an admixture in a given ratio. The use of crystalline cellulose as the binder provides the solid preparation which exhibits more excellent strength of the preparation while retaining excellent fast disintegrability in the 242'05-1259 oral cavity. As the crystalline cellulose, microcrystalline cellulose is also included.
The "crystalline cellulose" includes a refined one having partially cr -cellulose depolymerization. As crystalline cellulose, for example, CEOLUS KG 801, Avicel*PH
101, Avicel PH 102, Avicel PH 301, Avicel*PH 302, Avicel*RC-A591 NF
(crystalline cellulose ~ carmellose sodium), Aviceh'RC-591 (crystalline cellulose ~
carmellose sodium)and the like are concretely exemplified. Among them, CEOLUS' KG $01 referred to as highly moldable crystalline cellulose is preferably used. Such crystalline celIuIoses are optionally used in an admixture thereof with suitable ratio.
Such crystalline celluloses can be commercially available (manufactured by Asahi Chemical Industry Co., Ltd. (Japan)). The crystalline cellulose is used in an amount of, for example, 1 to 50 parts by weight, preferably 2 to 40 parts by weight, more preferably 2 to parts by weight, per 100 parts by weight of the solid preparation in case of the solid preparation not comprising fine granules. Likewise, the crystalline cellulose is used in an amount of, for example, 1 to 50 pans by weight, preferably 2 to 40 parts by weight, 15 more preferably 2 to 20 parts by weight, per 100 parts by weight of the solid preparation apart from fine granules in case of the solid preparation comprising fine granules.
As the acids, for example, citric acid, tartaric acid, malic acid and the like are exemplified.
As the foaming agents, for example, sodium bicarbonate and the like are 20 exemplified.
As the artificial sweeteners, for example, saccharin sodium, dipotassium glycyrrhizinate, aspartame, stevia, thaumatin and the like are exemplified.
As the flavorants, for example, lemon, lemon lime, orange; mentol, strawberry and the like are exemplified.
As the lubricants, for example, magnesium stearate, sucrose fatty acid ester, polyethylene glycol, talc, stearic acid and the like are exemplified. Use of polyethylene glycol as the lubricant provides the stable solid preparation of which the decomposition over time of the pharmacologically active ingredient is controlled. At that time, polyethylene glycol is used in an amount of, for example, 0.01 to 10 parts by weight, *Trade-mark 13 242'05-1259 preferably 0.1 to 5 parts by weight, per 100 parts by weight of the solid preparation in case of the solid preparation not comprising fine granules. Likewise, polyethylene glycol is used in an amount of; for example, 0.01 to 10 parts by weight, preferably 0.1 to S parts by weight, per 100 parts by weight of the solid preparation apart from fine granules in case of the solid preparation comprising fine granules.
As the colorants, for example, various food colorants such as Food Yellow No.
5, Food Red No.2, Food Blue No. 2 and the like; food lakes, red iron oxide and the like are exemplified.
As the stabilizers, for example, a basic substance in the case of the basic pharmacologically active ingredient and an acidic substance in the case of the acidic pharmacologically active ingredient are exemplified.
As the excipients, for example, lactose, sucrose, D-mannitol, starch, corn starch, crystalline cellulose, light silicic anhydride, titanium oxide and the like are exemplified.
As the disintegrators, for example, disintegrators called super disintegrators such as crospovidone [manufactured by ISP Inc. (U.S.A.), BASF (Germany)], croscarmellose sodium [FMC-Asahi Chemical Industry Co., Ltd. (Japan)], carmeliose calcium [Gotoku Chemical (Yakuhin), (Japan)]; hydroxypropylcellulose; how-substituted hydroxypropylcellulose; carboxymethylstarch sodium [Matsutani Chemical Co., Ltd.
(Japan)]; corn starch and the like are exemplified. Among them, crospovidone is preferably used. Such two or more disintegrators are optionally used in an admixture thereof with suitable ratio.
As crospovidone, any cross-linked homopolymer such as 1-ethenyl-2-pyrrolidinone homopolymer may be used, and usually crospovidone having a molecular weight of at least 1,000,000 is used. As crospovidone which is commercially available, for example, Cross-linked povidone, Kollidone CL [manufactured by BASF
(Germany)], Polyplasdone XL, Polyplasdone XL-10, INF-10 [manufactured by ISP Inc., (U.S.A.)], polyvinylpolypyrrolidone, PVPP, 1-vinyl-2-pyrrolidinone homopolymer and the like are concretely exemplified.
Two or more of these disintegrants can be as a mixture in a given ratio. For *Trade-mark 14 example, (i) crospovidone solely, or (ii) crospovidone and another disintegrant(s) is preferably used.
Such disintegrator is used in an amount of, for example, 0.1 to 20 parts by weight, preferably 1 to 10 parts by weight, more preferably 3 to 7 parts by weight, per 100 parts by weight of the solid preparation in case of the solid preparation not comprising fine granules. Likewise, such disintegrator is used in an amount of, for example, 0.1 to 20 parts by weight, preferably 1 to 10 parts by weight, more preferably 3 to 7 parts by weight, per 100 parts by weight of the rest of the solid preparation other than the fine granules in case of the solid preparation comprising fine granules.
5-1) Other Ingredients for Dosage Forms , especially of Acid-labile Pharmacologically Active Ingredient In case that the pharmacologically active ingredient is an acid-labile one such as lansoprazole, omeprazole, rapeprazole, pantoprazole and the like, a basic inorganic salt is .
preferably incorporated to stabilize the pharmacologically active ingredient in the solid preparation.
The "basic inorganic salt" includes, for example, a basic inorganic salt of sodium, potassium, magnesium and/or calcium, preferably a basic inorganic salt of magnesium and/or calcium. Among others, preferred is a basic inorganic salt of magnesium.
The basic inorganic salt of sodium includes, for example, sodium carbonate, sodium hydrogencarbonate, sodium phosphate, sodium hydrogenphosphate and the like.
The basic inorganic salt of potassium includes, for example, potassium carbonate, potassium hydrogencarbonate, potassium phosphate, potassium hydrogenphosphate, potassium sodium carbonate and the like.
The basic inorganic salt of magnesium includes, for example, heavy magnesium carbonate, magnesium carbonate, magnesium oxide, magnesium hydroxide, magnesium metasilicate aluminate, magnesium silicate aluminate, magnesium silicate, magnesium aluminate, synthetic hydrotalcite (Mg6Al2(OH)16 ~ C03 ~ 4H20], aluminum magnesium hydroxide [2.SMg0 ~ A1203 ~ xH2(~] and the like. Among others, preferred is heavy magnesium carbonate, magnesium carbonate, magnesium oxide, magnesium hydroxide and the like.
The basic inorganic: salt of calcium includes, for example, precipitated calcium carbonate, calcium hydroxide, and the like.
The preferable examples of the "basic inorganic salt" are magnesium basic inorganic salt, and more preferable examples include heavy magnesium carbonate, magnesium carbonate, magnesium oxide, magnesium hydroxide, and the like.
Such basic inorganic salt of magnesium or calcium, and the like has a basic pH
(not less than 7) when it is in, the form of a 1 % aqueous solution or suspension.
Two or more of these basic inorganic salts (preferably a basic inorganic salt of magnesium, a basic inorganic salt of calcium, and the like) can be used as a mixture in a given ratio. The amount of the basic inorganic salt to be used is appropriately selected depending on the kind of the. basic inorganic salt and is, for instance, 0.3 to 200 parts by weight, preferably 1 to 100 parts by weight, more preferably 10 to 50 parts by weight, especially preferably 20 to 40 parts by weight relative to the pharmacologically active ingredient.
6) Dosage Form containing Fine Granules (e.g., Tablet) As was mentioned before, the rapidly disintegrable preparation of the present invention can be used in any solid dosage form such as tablet, granule, fine granule and the like . In case that it is <i tablet, the tablet can contain fine granules.
The fine granules may contain the pharmacologically active ingredient. These dosage forms can be prepared by a conventional method or its analogous method.
7) Fine Granule containing Core The fine granule can contain a core together with or separately from the pharmacologically active ingredient. As such a core, for example, (1) a spherical granulated product comprising crystalline cellulose and lactose (e.g., a spherical 242'05-1259 granulated product being I00 to 200 ~m and comprising crystalline cellulose (3 parts) and lactose (7 parts) (Nonpareil 105 (trade mark.), manufactured by Freund Industrial Co., Ltd.
(Japan)), a spherical granulated product being 150 to 250 Eun and comprising crystalline cellulose (3 parts) and lactose (7 parts) (Nonpareil NP-7:3 (trade mark.), manufactured by Freund Industrial Co., Ltd. (Japan), a spherical granulated product being 150 to 250 ~,m and comprising crystalline cellulose (5 parts) and lactose (5 parts) (Nonpareil NP-5:5 (trade mark), manufactured by Freund Industrial Co., Ltd. (Japan)) and the like], (2) a spherical granulated product being 150 to 250 ~m and comprising crystalline cellulose [Avicel SP (trade mark), manufactured by Asahi Chemical Industry Co., Ltd.
(Japan) and the like) and the like are exemplified.
In case that a core is used, the core is optionally coated with the pharmacologically active ingredient and the like, and further coated for masking taste or smell and/or for imparting enteric dissolubility or sustained-release property by well known methods. In this case, such a core forms a fine granule comprising the 1S pharmacologically active ingredient. As a coating agent in this case, for example, enteric-coated polymers (e.g., cellulose acetate phthalate (CAP), methacrylate copolymer L, methacrylate copolymer LD (Eudragit L30D-55(trade mark; manufactured by Rohm GmbH (Germany))), methacrylate copolymer S, hydroxypropylmethylcellulose phthalate, hydroxymethylcellulose acetate succinate, hydroxypropylmethylcellulose acetate succinate, KollICoat MAE30DP (trade mark ; manufactured by BASF (Germany)), Polyquid PA-30 (trade mark; manufactured by SanyoKasei (Japan)), carboxymethylethylcellulose, shellac, methacrylate copolymer [e.g., Eudragit (trade mark ), Eudragit RL30D (trade mark ), Eudragit RS30D (trade mark ) and the like]
triethyl citrate, polyethylene glycol, acetylated monoglyceride, triacetin, castor oil, and the like), gastric dissolvable polymers (e.g., polyvinylacetal diethylaminoacetate, aminoalkyl methacrylate copolymer and the like), water-soluble polymers (e.g., hydrox~=propylcellulose, hydroxypropylmethylcellulose and the like), slightly soluble-polymers (e.g., ethylcellulose, aminoalkyl methacrylate copolymer RS, ethyl acrylate methyl rnethacrylate copolymer and the like), wax and the like are exemplified. One or 242'05-1259 more kinds) of coating agents are used in an admixture.
7-1) Production of Fine Granules The "fine granules" in the present invention can be produced by a known granulation method.
The "granulation method" includes, for example, rolling granulation method (e.g., centrifugal rolling granulation, etc.), fluidized-bed granulation (e.g., rolling fluidized-bed granulation, fluidized granulation, etc.), stirring granulation and the like.
Among others, preferred is fluidized-bed granulation method, more preferred is rolling fluidized-bed granulation method.
Concrete example of the "rolling granulation method" includes a method using "CF apparatus" manufactured by Freund Industrial Co., Ltd. (Japan) and the like.
Concrete examples of the "rolling fluidized-bed granulation method" include methods ".
using "SPIR-A-FLOW", "multi plex" manufactured by Powrex Corp. (Japan), "New-Marumerizer" manufactured by Fuji Paudal Co., Ltd. (Japan), and the like. The method for spraying the mixture can be suitably selected in accordance with the kind of granulator, and may be, for example, any one of a top spray method, a bottom spray method, a tangential spray method, and the like. Among others, a tangential spray method is preferred.
The "fine granules" in the present invention can be coated with any other ingredient including the active ingredient and the others, by a conventional coating method or its analogous method. For example, a method which comprises coating a core comprising crystalline cellulose and lactose with an acid-labile physiologically active substance is employed in case that pharmacologically active ingredient is an acid-labile physiologically active substance.
For example, used is a method described in JP-A-S-92918 (coating method), which comprises coating a core comprising crystalline cellulose and lactose with an acid-Iabile physiologically active substance, if necessary together with a basic inorganic salt, binders, lubricants, excipients, a water-soluble polymer, etc. (hereinafter, may be *Trade-mark 1$
242'05-1259 abbreviated to "coating layer"). For example, employed is a method which comprises coating a core with an acid-labile physiologically active substance and a basic inorganic salt, and then further with binders, lubricants, excipients, a water-soluble polymer, etc.
7-2) Property of Core for Fine Granules The average particle diameter of the "cores" is 250 ~.m or less, preferably 50 to 250 pm, more preferably 100 to 250 N.m, especially preferably 100 to 200 pm.
The "cores" having the above average particle diameter include particles which all pass through a #50 sieve (300 Vim), particles where 5 w/w % or less of the total remain on a #60 sieve (250 Vim), and particles where 10 w/w % or less of the total pass through a #282 sieve (53 Eun). The specific volume of the "core" is 5 ml/g or less, preferably 3 rnl/g or less.
Examples of the "core" include (1) a spherical granulated product comprising crystalline cellulose and lactose, (2) a spherical granulated product being 150 to 250 lun and comprising crystalline cellulose (Avicel*SP, manufactured by Asahi Chemical Co., Ltd. (Japan)), (3) a stirring granulated product being 50 to 250 ~.rn and comprising lactose (9 parts) and a starch (1 part), (4) a micro particle being 250 ~m or less classified as a spherical granule comprising micro crystalline cellulose described in JP-A-61-213201, (5) a processed product such as wax foamed to a sphere by splaying or melting granulation, (6) a processed product such as gelatin beads comprising oil component, (7) calcium silicate, (8) starch, (9) a porous particle such as chitin, cellulose, chitosan, etc, and (10) a bulk product such as granulated sugar, crystalline lactose or sodium chloride, and processed preparations thereof.
Further, these cores may be produced in accordance with per se known grinding method or granulation method, and sifted to prepare the particles having the desired particle diameter.
The above "spherical granulated product comprising crystalline cellulose and lactose" includes, for example (i) a spherical granulated product being 100 to 200 ~m and comprising crystalline cellulose (3 parts) and lactose (7 parts) [e.g., Nonpareil 105 (70-*Trade-mark 19 242'05-1259 140) (particle diameter of I00 to 200 p.m), manufactured by Freund Industrial Co., Ltd.
(Japan)), (ii) a spherical granulated product being 150 to 250 ~m and comprising crystalline cellulose (3 parts) and lactose (7 parts) [e.g., Nonpareil NP-7:3, manufactured by Freund Industrial Co., Ltd. (Japan)), (iii) a spherical granulated product being 100 to 200 pm and comprising crystalline cellulose (4.5 parts) and lactose (5.5 parts) [e.g., *
Nonpareil 105T (70-140) (particle diameter of 100 to 200 p.m), manufactured by Freund Industrial Co., Ltd. (Japan)], (iv) a spherical granulated product being 150 to 250 lun and comprising crystalline cellulose (5 parts) and lactose (5 parts) (e.g., Nonpareil NP-5:5, manufactured by Freund Industrial Co:, Ltd. (Japan)), and the like.
In order to produce a pharmaceutical preparation which is.superior in dissolution while retaining suitable strength, the "core" includes, for example, preferably the spherical granulated product comprising crystalline cellulose and lactose, more preferably the spherical granulated material comprising crystalline cellulose and lactose and containing 50 weight % or more of lactose relative to the whole solid preparation.
Among others, preferred is a core comprising 40 to 50 weight % of crystalline cellulose and 50 to 60 weight % of lactose.
As the "core" employed in the present invention, preferably, there may be employed the spherical granulated product comprising crystalline cellulose and lactose, more preferably the spherical granulated product with a diameter of 100 to 200 p.m and comprising crystalline cellulose (4.5 parts) and lactose (5.5 parts).
The "core" may contain the physiologically active substance such as the above described pharmacologically active ingredient. Also, the "core" may not contain the physiologically active substance because the release of the physiologically active substance can be controlled by a coating layer containing the physiologically active substance.
The "core" is preferably as uniform a sphere as possible, for reducing the irregularity of the coating, in addition to being a powdery core.
The ratio of the "coating layer" to the "core" can be selected within the range in which it is possible to control dissolution of the physiologically active substance and *Trade-mark particle size of the composition, for example, usually 50 to 400 parts by weight relative to 100 parts by weight of the care.
7-3) Coating Method of Fine Granules The coating layer may be constructed by plural layers. At least one layer of the plural layers must contain the physiologically active substance. The combination of various layers such as a coating layer not containing the active ingredient, a base coating layer, and an enteric coating layer which constitute the coating layer can be suitably selected.
In case that the "core" is coated, for example, the above physiologically active substance and the water-soluble polymer can be employed in an admixture thereof. The admixture may be a solution or a dispersion, and can be prepared by using an organic solvent such as water or ethanol or an admixture thereof.
The concentration of the water-soluble polymer in the admixture varies according to the ratio of the physiologically active substance and the additives, and is usually 0.1 to 50 weight %, preferably 0.5 to 10 weight % relative to the whole solid preparation, in order to retain the binding strength of the physiologically active substance to the core and maintain the viscosity of the mixture so as not to reduce the workability.
Where the coating layer comprises plural layers, the concentration of the physiologically active substance in each layer may be changed successively or gradually by selecting for the content ratio or viscosity of the water-soluble polymer or by successive coating with mixtures varying in the ratio of the physiologically active substance and the other additives. In the above case, it may be coated with a mixture in which the content ratio of the water-soluble polymer is out of the range of 0.1 to 50 weight %, as long as the coating layer as a whole contains 0.1 to 50 weight %
of the water-soluble polymer. Further, in forming the inactive coat according to knawn methods, the coating layer optionally comprises some layers such that the inactive layer may block each Layer containing the physiologically active substance.
Also, in case of two or more physiologically active substances not suited in the WO 00/06126 PCT/,JP99/04015 compatibility, the core may be coated by employing each mixture together or separately.
The above coated material is dried, and passed through sieves to obtain a "composition" having uniform size. Because the form of the composition is usually according to the core, a fine granule being in the form of a rough sphere can be obtained.
As the sieve may be employed, for example a #50 circular sieve (300 pm). The composition is obtained by selecting those which pass through the #50 circular sieve.
The "fine granule" in the present invention can be produced in accordance with in the same manner as above granulation method, for example, a method which comprises coating the composition with an enteric coating layer, in order to protect the physiologically active substance or to impart enteric dissolution. If necessary, the composition coated with an enteric coating layer may be further coated by a water-soluble sugar alcohol, preferably mannitol. In such case, the strength of the orally disintegrable tablet comprising fine granules is improved.
The "enteric coating layer" is preferably a layer having 20 to 70 Vim, preferably 30 to 50 ~.m of thickness and coating the whole surface of the composition containing the physiologically active substance. Accordingly, the smaller particle diameter of the composition, the higher the weight % of the enteric coating layer in the whole fine granule. In the fine granule of the present invention, the "enteric coating layer" is 30 to 70 weight %, preferably 50 to 70 weight %, of the fine granule as a whole.
The "enteric coating layer" are optionally constructed by plural (e.g., 2 or 3) layers. For example, the used is a method which comprises coating a composition with an enteric coating layer having polyethyleneglycol, and then with an enteric coating layer having triethyl citrate, followed by being coated with an enteric coating layer having polyethyleneglycol.
(Japan)), a spherical granulated product being 150 to 250 Eun and comprising crystalline cellulose (3 parts) and lactose (7 parts) (Nonpareil NP-7:3 (trade mark.), manufactured by Freund Industrial Co., Ltd. (Japan), a spherical granulated product being 150 to 250 ~,m and comprising crystalline cellulose (5 parts) and lactose (5 parts) (Nonpareil NP-5:5 (trade mark), manufactured by Freund Industrial Co., Ltd. (Japan)) and the like], (2) a spherical granulated product being 150 to 250 ~m and comprising crystalline cellulose [Avicel SP (trade mark), manufactured by Asahi Chemical Industry Co., Ltd.
(Japan) and the like) and the like are exemplified.
In case that a core is used, the core is optionally coated with the pharmacologically active ingredient and the like, and further coated for masking taste or smell and/or for imparting enteric dissolubility or sustained-release property by well known methods. In this case, such a core forms a fine granule comprising the 1S pharmacologically active ingredient. As a coating agent in this case, for example, enteric-coated polymers (e.g., cellulose acetate phthalate (CAP), methacrylate copolymer L, methacrylate copolymer LD (Eudragit L30D-55(trade mark; manufactured by Rohm GmbH (Germany))), methacrylate copolymer S, hydroxypropylmethylcellulose phthalate, hydroxymethylcellulose acetate succinate, hydroxypropylmethylcellulose acetate succinate, KollICoat MAE30DP (trade mark ; manufactured by BASF (Germany)), Polyquid PA-30 (trade mark; manufactured by SanyoKasei (Japan)), carboxymethylethylcellulose, shellac, methacrylate copolymer [e.g., Eudragit (trade mark ), Eudragit RL30D (trade mark ), Eudragit RS30D (trade mark ) and the like]
triethyl citrate, polyethylene glycol, acetylated monoglyceride, triacetin, castor oil, and the like), gastric dissolvable polymers (e.g., polyvinylacetal diethylaminoacetate, aminoalkyl methacrylate copolymer and the like), water-soluble polymers (e.g., hydrox~=propylcellulose, hydroxypropylmethylcellulose and the like), slightly soluble-polymers (e.g., ethylcellulose, aminoalkyl methacrylate copolymer RS, ethyl acrylate methyl rnethacrylate copolymer and the like), wax and the like are exemplified. One or 242'05-1259 more kinds) of coating agents are used in an admixture.
7-1) Production of Fine Granules The "fine granules" in the present invention can be produced by a known granulation method.
The "granulation method" includes, for example, rolling granulation method (e.g., centrifugal rolling granulation, etc.), fluidized-bed granulation (e.g., rolling fluidized-bed granulation, fluidized granulation, etc.), stirring granulation and the like.
Among others, preferred is fluidized-bed granulation method, more preferred is rolling fluidized-bed granulation method.
Concrete example of the "rolling granulation method" includes a method using "CF apparatus" manufactured by Freund Industrial Co., Ltd. (Japan) and the like.
Concrete examples of the "rolling fluidized-bed granulation method" include methods ".
using "SPIR-A-FLOW", "multi plex" manufactured by Powrex Corp. (Japan), "New-Marumerizer" manufactured by Fuji Paudal Co., Ltd. (Japan), and the like. The method for spraying the mixture can be suitably selected in accordance with the kind of granulator, and may be, for example, any one of a top spray method, a bottom spray method, a tangential spray method, and the like. Among others, a tangential spray method is preferred.
The "fine granules" in the present invention can be coated with any other ingredient including the active ingredient and the others, by a conventional coating method or its analogous method. For example, a method which comprises coating a core comprising crystalline cellulose and lactose with an acid-labile physiologically active substance is employed in case that pharmacologically active ingredient is an acid-labile physiologically active substance.
For example, used is a method described in JP-A-S-92918 (coating method), which comprises coating a core comprising crystalline cellulose and lactose with an acid-Iabile physiologically active substance, if necessary together with a basic inorganic salt, binders, lubricants, excipients, a water-soluble polymer, etc. (hereinafter, may be *Trade-mark 1$
242'05-1259 abbreviated to "coating layer"). For example, employed is a method which comprises coating a core with an acid-labile physiologically active substance and a basic inorganic salt, and then further with binders, lubricants, excipients, a water-soluble polymer, etc.
7-2) Property of Core for Fine Granules The average particle diameter of the "cores" is 250 ~.m or less, preferably 50 to 250 pm, more preferably 100 to 250 N.m, especially preferably 100 to 200 pm.
The "cores" having the above average particle diameter include particles which all pass through a #50 sieve (300 Vim), particles where 5 w/w % or less of the total remain on a #60 sieve (250 Vim), and particles where 10 w/w % or less of the total pass through a #282 sieve (53 Eun). The specific volume of the "core" is 5 ml/g or less, preferably 3 rnl/g or less.
Examples of the "core" include (1) a spherical granulated product comprising crystalline cellulose and lactose, (2) a spherical granulated product being 150 to 250 lun and comprising crystalline cellulose (Avicel*SP, manufactured by Asahi Chemical Co., Ltd. (Japan)), (3) a stirring granulated product being 50 to 250 ~.rn and comprising lactose (9 parts) and a starch (1 part), (4) a micro particle being 250 ~m or less classified as a spherical granule comprising micro crystalline cellulose described in JP-A-61-213201, (5) a processed product such as wax foamed to a sphere by splaying or melting granulation, (6) a processed product such as gelatin beads comprising oil component, (7) calcium silicate, (8) starch, (9) a porous particle such as chitin, cellulose, chitosan, etc, and (10) a bulk product such as granulated sugar, crystalline lactose or sodium chloride, and processed preparations thereof.
Further, these cores may be produced in accordance with per se known grinding method or granulation method, and sifted to prepare the particles having the desired particle diameter.
The above "spherical granulated product comprising crystalline cellulose and lactose" includes, for example (i) a spherical granulated product being 100 to 200 ~m and comprising crystalline cellulose (3 parts) and lactose (7 parts) [e.g., Nonpareil 105 (70-*Trade-mark 19 242'05-1259 140) (particle diameter of I00 to 200 p.m), manufactured by Freund Industrial Co., Ltd.
(Japan)), (ii) a spherical granulated product being 150 to 250 ~m and comprising crystalline cellulose (3 parts) and lactose (7 parts) [e.g., Nonpareil NP-7:3, manufactured by Freund Industrial Co., Ltd. (Japan)), (iii) a spherical granulated product being 100 to 200 pm and comprising crystalline cellulose (4.5 parts) and lactose (5.5 parts) [e.g., *
Nonpareil 105T (70-140) (particle diameter of 100 to 200 p.m), manufactured by Freund Industrial Co., Ltd. (Japan)], (iv) a spherical granulated product being 150 to 250 lun and comprising crystalline cellulose (5 parts) and lactose (5 parts) (e.g., Nonpareil NP-5:5, manufactured by Freund Industrial Co:, Ltd. (Japan)), and the like.
In order to produce a pharmaceutical preparation which is.superior in dissolution while retaining suitable strength, the "core" includes, for example, preferably the spherical granulated product comprising crystalline cellulose and lactose, more preferably the spherical granulated material comprising crystalline cellulose and lactose and containing 50 weight % or more of lactose relative to the whole solid preparation.
Among others, preferred is a core comprising 40 to 50 weight % of crystalline cellulose and 50 to 60 weight % of lactose.
As the "core" employed in the present invention, preferably, there may be employed the spherical granulated product comprising crystalline cellulose and lactose, more preferably the spherical granulated product with a diameter of 100 to 200 p.m and comprising crystalline cellulose (4.5 parts) and lactose (5.5 parts).
The "core" may contain the physiologically active substance such as the above described pharmacologically active ingredient. Also, the "core" may not contain the physiologically active substance because the release of the physiologically active substance can be controlled by a coating layer containing the physiologically active substance.
The "core" is preferably as uniform a sphere as possible, for reducing the irregularity of the coating, in addition to being a powdery core.
The ratio of the "coating layer" to the "core" can be selected within the range in which it is possible to control dissolution of the physiologically active substance and *Trade-mark particle size of the composition, for example, usually 50 to 400 parts by weight relative to 100 parts by weight of the care.
7-3) Coating Method of Fine Granules The coating layer may be constructed by plural layers. At least one layer of the plural layers must contain the physiologically active substance. The combination of various layers such as a coating layer not containing the active ingredient, a base coating layer, and an enteric coating layer which constitute the coating layer can be suitably selected.
In case that the "core" is coated, for example, the above physiologically active substance and the water-soluble polymer can be employed in an admixture thereof. The admixture may be a solution or a dispersion, and can be prepared by using an organic solvent such as water or ethanol or an admixture thereof.
The concentration of the water-soluble polymer in the admixture varies according to the ratio of the physiologically active substance and the additives, and is usually 0.1 to 50 weight %, preferably 0.5 to 10 weight % relative to the whole solid preparation, in order to retain the binding strength of the physiologically active substance to the core and maintain the viscosity of the mixture so as not to reduce the workability.
Where the coating layer comprises plural layers, the concentration of the physiologically active substance in each layer may be changed successively or gradually by selecting for the content ratio or viscosity of the water-soluble polymer or by successive coating with mixtures varying in the ratio of the physiologically active substance and the other additives. In the above case, it may be coated with a mixture in which the content ratio of the water-soluble polymer is out of the range of 0.1 to 50 weight %, as long as the coating layer as a whole contains 0.1 to 50 weight %
of the water-soluble polymer. Further, in forming the inactive coat according to knawn methods, the coating layer optionally comprises some layers such that the inactive layer may block each Layer containing the physiologically active substance.
Also, in case of two or more physiologically active substances not suited in the WO 00/06126 PCT/,JP99/04015 compatibility, the core may be coated by employing each mixture together or separately.
The above coated material is dried, and passed through sieves to obtain a "composition" having uniform size. Because the form of the composition is usually according to the core, a fine granule being in the form of a rough sphere can be obtained.
As the sieve may be employed, for example a #50 circular sieve (300 pm). The composition is obtained by selecting those which pass through the #50 circular sieve.
The "fine granule" in the present invention can be produced in accordance with in the same manner as above granulation method, for example, a method which comprises coating the composition with an enteric coating layer, in order to protect the physiologically active substance or to impart enteric dissolution. If necessary, the composition coated with an enteric coating layer may be further coated by a water-soluble sugar alcohol, preferably mannitol. In such case, the strength of the orally disintegrable tablet comprising fine granules is improved.
The "enteric coating layer" is preferably a layer having 20 to 70 Vim, preferably 30 to 50 ~.m of thickness and coating the whole surface of the composition containing the physiologically active substance. Accordingly, the smaller particle diameter of the composition, the higher the weight % of the enteric coating layer in the whole fine granule. In the fine granule of the present invention, the "enteric coating layer" is 30 to 70 weight %, preferably 50 to 70 weight %, of the fine granule as a whole.
The "enteric coating layer" are optionally constructed by plural (e.g., 2 or 3) layers. For example, the used is a method which comprises coating a composition with an enteric coating layer having polyethyleneglycol, and then with an enteric coating layer having triethyl citrate, followed by being coated with an enteric coating layer having polyethyleneglycol.
8) Production of Rapidly Disintegrable Solid Preparation The rapidly disintegrable solid preparation of the present invention can be produced in accordance with a conventional method or its analogous method in the field of pharmaceutical preparation. As such method, for example, a method comprising blending the pharmacologically active ingredient, the sugar and the low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group after adding water if needed, molding, and then drying if needed is exemplified. However, the rapidly disintegrable solid preparation of the present invention can be produced also without water.
8-1) Production of Rapidly Disintegrable Tablet For the production of the orally disintegrable tablet, a conventional molding method or its analogous methad can be applied by using appropriate ingredients selected from the above-mentioned ones including the fine granules.
Preferred example of the method for the orally disintegrable tablet having the fine granules of the coated cores comprises:
(i) coating a core comprising crystalline cellulose and lactose with a physiologically active substance and an excipient, followed by being coated with a coating layer comprising a water-soluble polymer to obtain a composition, (ii) coating the resultant composition with an enteric coating layer having polyethyleneglycol, and then with an enteric coating layer having triethyl citrate, and then followed by being coated by mannitol to obtain fine granule, and (iii) blending the resultant fine granule with an additive, followed by molding.
The molding procedure can be carried out, for instance, by tabletting with a pressure of 0.5 to 3 ton/cm2, preferably 1 to 2 ton/cm2 by using a single-punch tabletting machine (Kikusui Seisakusho (Japan)) or a rotary type tabletting machine [Kikusui Seisakusho (Japan)] when a solid preparation is a tablet, especially an orally disintegrable tablet.
The drying procedure can be carried out by any techniques such as vacuum drying, fluidized-bed drying; and the like used to dry the general pharmaceutical preparation.
The blending procedure can be carried out by any conventional blending techniques such as admixing, kneading, granulating and the like. The blending 242'05-1259 procedure is carried out by using an apparatus such as Vertical Granulator [manufactured by Powrex Corp. (Japan)], Universal Kneader [manufactured by Hata Iron Works Co., Ltd. (Japan)], fluidized bed granulator LAB-1*and FD-3S*[manufactured by Powrex Corp. (Japan)], centrifugal fluidized coating granulator MP-10, MP-400 S [manufactured by Powrex Corp. (Japan)] and the like In the present specification, "coating" means also partial coating and adhesion or adsorption in addition to coating the whole surface of an object (e.g., core) which is to be coated.
"Spherical" means also forms having a curved surface such as forms having elliptic cross sections, and forms in the shapes of eggplants and drops in addition to spheres.
"Average particle diameter" means volume based distribution median diameter (median diameter: 50% particle diameter from cumulative distribution), unless otherwise specified. It can be measured by, for example, a laser diffraction particle distribution measurement method. Concretely exemplified is a method using Raiser Diffraction Analyzer, type: HEROS RODOS [trade mark.; manufactured by Sympatec (Germany)].
In the present invention, "fine granules" have an average particle diameter of about 400 ~,m or less, in order that roughness is not felt in the mouth.
Preferably, the average particle diameter of the fine granules is 300 to 400 mm.
Aside from the average particle diameter of the above "fine granules", regarding the maximum particle size, the particle diameter is substantially 425 pm or less, and preferably substantially 400 ~,m or less. Preferably, the particle diameter is substantially 300 to 425 Vim, more preferably 300 to 400 Vim.
"Substantially" as used in the phases of "the particle diameter is substantially 425 ~.m or less" and "the.particIe diameter is substantially 400 pm or less"
means that the particles may include a small quantity (about 5 weight % or less) of particles whose particle diameter is out of the above described range, to include the inevitable contaminant particles.
The "composition" may contain water-soluble polymers, the above binders, *Trade-mark 24 lubricants, excipients and the like in common use as pharmaceutical materials.
The amount of such water-soluble polymers, binders, lubricants, and excipients is selected from amounts commonly employed in the manufacture of preparations in general dosage forms.
The "water-solublf; polymer" includes, for example, a water-soluble polymer which is soluble in ethanol (:i.e., an ethanol-soluble water-soluble polymer) such as a cellulose derivative (e.g., hydroxypropyl cellulose, which may be referred to as "HPC"
hereinafter), polyvinylpyrrolidone, etc.; a water-soluble polymer which is insoluble in ~ ethanol (i.e., an ethanol-insoluble water-soluble polymer) such as a cellulose derivative (e.g., hydroxypropylmethyl cellulose, which may be referred to as "HPMC"
hereinafter, methyl cellulose, carboxymethyl cellulose sodium, etc.), sodium polyacrylate, polyvinyl alcohol, sodium alginate, and guar gum, etc.
When such water-soluble polymers are used, the dissolution of drugs (physiologically active substances) can be controlled by employing them in combination with the ethanol-soluble wager-soluble polymer and ethanol-insoluble water-soluble polymer or by employing them in combination with some water-soluble polymers having different viscosity.
In the present invention, the "water-soluble polymer" is preferably, a cellulose derivative such as HPC, HPMC, and methyl cellulose, and polyvinyl alcohol.
More preferred is a cellulose derivative such as HPC, HPMC.
The "HPC" contains, for example, about 53.4 to 77.5 weight %, more preferably about 60 to 70 weight %, of hydroxypropoxyl group. The viscosity of weight % aqueous solution of HPC at 20 °C is usually about 1 to 150,000 cps (centipoise).
As the above HPC, hydroxypropyl cellulose defined in Japanese Pharmacopoeia may be employed. Hereinafter, all. viscosity of HPC is a value of 2 weight % aqueous solution at 20 °C.
The "HPMC" is a mixed ether which is connected by a methoxy group and a hydroxyprapoxy group. The content of the methoxy group of HPMC is, for example, about 19 to 30 weight %. T'he content of the hydroxypropoxy group is, for example, 2~
about 4 to 12 weight %. The viscosity of 2 weight % aqueous solution of HPMC
at 20 °C is usually about 1 to 40,000 centistokes. As such HPMC may be employed hydroxypropylmethyl cellulose 2208 defined by Japanese Pharmacopoeia, hydroxypropylmethyl cellulose 2906 defined by 3apanese Pharmacopoeia, hydroxypropylmethyl cellulose 2910 defined by Japanese Pharmacopoeia, and so forth.
Hydroxypropyl cellulose(s) may be employed alone or in an admixture of two or more thereof.
The content of the water-soluble polymer such as HPC and/or HPMC is usually about 0.1 to 50 weight %, preferably about 1 to 30 weight %, as against the whole "composition" containing the physiologically active substance, in order to control the dissolution of the physiologically active substance in the composition containing the physiologically active substance and retain a high content of the physiologically active substance.
In the present invention, the "fine granules" may contain, for example, titanium oxide as a masking agent.
The diameter of the "orally disintegrable tablet" of the present invention is about 5 to 20 mm, preferably about 7 to 15 mm, more preferably about 8 to 13 mm.
The "orally disintegrable tablet" optionally may not comprise lubricant inside the tablet.
When the "fine granule" of the present invention is used for a tablet except for an orally disintegrable tablc;t, the diameter of the tablet is about 5 to 10 mm, preferably about 5 to 8 mm. When the fine granule of the present inventiori is used fox a capsule, the size of the capsule is preferably a #2 capsule or less.
8-1) Production of Rapidly Disintegrable Tablet For the production of the orally disintegrable tablet, a conventional molding method or its analogous methad can be applied by using appropriate ingredients selected from the above-mentioned ones including the fine granules.
Preferred example of the method for the orally disintegrable tablet having the fine granules of the coated cores comprises:
(i) coating a core comprising crystalline cellulose and lactose with a physiologically active substance and an excipient, followed by being coated with a coating layer comprising a water-soluble polymer to obtain a composition, (ii) coating the resultant composition with an enteric coating layer having polyethyleneglycol, and then with an enteric coating layer having triethyl citrate, and then followed by being coated by mannitol to obtain fine granule, and (iii) blending the resultant fine granule with an additive, followed by molding.
The molding procedure can be carried out, for instance, by tabletting with a pressure of 0.5 to 3 ton/cm2, preferably 1 to 2 ton/cm2 by using a single-punch tabletting machine (Kikusui Seisakusho (Japan)) or a rotary type tabletting machine [Kikusui Seisakusho (Japan)] when a solid preparation is a tablet, especially an orally disintegrable tablet.
The drying procedure can be carried out by any techniques such as vacuum drying, fluidized-bed drying; and the like used to dry the general pharmaceutical preparation.
The blending procedure can be carried out by any conventional blending techniques such as admixing, kneading, granulating and the like. The blending 242'05-1259 procedure is carried out by using an apparatus such as Vertical Granulator [manufactured by Powrex Corp. (Japan)], Universal Kneader [manufactured by Hata Iron Works Co., Ltd. (Japan)], fluidized bed granulator LAB-1*and FD-3S*[manufactured by Powrex Corp. (Japan)], centrifugal fluidized coating granulator MP-10, MP-400 S [manufactured by Powrex Corp. (Japan)] and the like In the present specification, "coating" means also partial coating and adhesion or adsorption in addition to coating the whole surface of an object (e.g., core) which is to be coated.
"Spherical" means also forms having a curved surface such as forms having elliptic cross sections, and forms in the shapes of eggplants and drops in addition to spheres.
"Average particle diameter" means volume based distribution median diameter (median diameter: 50% particle diameter from cumulative distribution), unless otherwise specified. It can be measured by, for example, a laser diffraction particle distribution measurement method. Concretely exemplified is a method using Raiser Diffraction Analyzer, type: HEROS RODOS [trade mark.; manufactured by Sympatec (Germany)].
In the present invention, "fine granules" have an average particle diameter of about 400 ~,m or less, in order that roughness is not felt in the mouth.
Preferably, the average particle diameter of the fine granules is 300 to 400 mm.
Aside from the average particle diameter of the above "fine granules", regarding the maximum particle size, the particle diameter is substantially 425 pm or less, and preferably substantially 400 ~,m or less. Preferably, the particle diameter is substantially 300 to 425 Vim, more preferably 300 to 400 Vim.
"Substantially" as used in the phases of "the particle diameter is substantially 425 ~.m or less" and "the.particIe diameter is substantially 400 pm or less"
means that the particles may include a small quantity (about 5 weight % or less) of particles whose particle diameter is out of the above described range, to include the inevitable contaminant particles.
The "composition" may contain water-soluble polymers, the above binders, *Trade-mark 24 lubricants, excipients and the like in common use as pharmaceutical materials.
The amount of such water-soluble polymers, binders, lubricants, and excipients is selected from amounts commonly employed in the manufacture of preparations in general dosage forms.
The "water-solublf; polymer" includes, for example, a water-soluble polymer which is soluble in ethanol (:i.e., an ethanol-soluble water-soluble polymer) such as a cellulose derivative (e.g., hydroxypropyl cellulose, which may be referred to as "HPC"
hereinafter), polyvinylpyrrolidone, etc.; a water-soluble polymer which is insoluble in ~ ethanol (i.e., an ethanol-insoluble water-soluble polymer) such as a cellulose derivative (e.g., hydroxypropylmethyl cellulose, which may be referred to as "HPMC"
hereinafter, methyl cellulose, carboxymethyl cellulose sodium, etc.), sodium polyacrylate, polyvinyl alcohol, sodium alginate, and guar gum, etc.
When such water-soluble polymers are used, the dissolution of drugs (physiologically active substances) can be controlled by employing them in combination with the ethanol-soluble wager-soluble polymer and ethanol-insoluble water-soluble polymer or by employing them in combination with some water-soluble polymers having different viscosity.
In the present invention, the "water-soluble polymer" is preferably, a cellulose derivative such as HPC, HPMC, and methyl cellulose, and polyvinyl alcohol.
More preferred is a cellulose derivative such as HPC, HPMC.
The "HPC" contains, for example, about 53.4 to 77.5 weight %, more preferably about 60 to 70 weight %, of hydroxypropoxyl group. The viscosity of weight % aqueous solution of HPC at 20 °C is usually about 1 to 150,000 cps (centipoise).
As the above HPC, hydroxypropyl cellulose defined in Japanese Pharmacopoeia may be employed. Hereinafter, all. viscosity of HPC is a value of 2 weight % aqueous solution at 20 °C.
The "HPMC" is a mixed ether which is connected by a methoxy group and a hydroxyprapoxy group. The content of the methoxy group of HPMC is, for example, about 19 to 30 weight %. T'he content of the hydroxypropoxy group is, for example, 2~
about 4 to 12 weight %. The viscosity of 2 weight % aqueous solution of HPMC
at 20 °C is usually about 1 to 40,000 centistokes. As such HPMC may be employed hydroxypropylmethyl cellulose 2208 defined by Japanese Pharmacopoeia, hydroxypropylmethyl cellulose 2906 defined by 3apanese Pharmacopoeia, hydroxypropylmethyl cellulose 2910 defined by Japanese Pharmacopoeia, and so forth.
Hydroxypropyl cellulose(s) may be employed alone or in an admixture of two or more thereof.
The content of the water-soluble polymer such as HPC and/or HPMC is usually about 0.1 to 50 weight %, preferably about 1 to 30 weight %, as against the whole "composition" containing the physiologically active substance, in order to control the dissolution of the physiologically active substance in the composition containing the physiologically active substance and retain a high content of the physiologically active substance.
In the present invention, the "fine granules" may contain, for example, titanium oxide as a masking agent.
The diameter of the "orally disintegrable tablet" of the present invention is about 5 to 20 mm, preferably about 7 to 15 mm, more preferably about 8 to 13 mm.
The "orally disintegrable tablet" optionally may not comprise lubricant inside the tablet.
When the "fine granule" of the present invention is used for a tablet except for an orally disintegrable tablc;t, the diameter of the tablet is about 5 to 10 mm, preferably about 5 to 8 mm. When the fine granule of the present inventiori is used fox a capsule, the size of the capsule is preferably a #2 capsule or less.
9) Property of Rapidly Disintegrable Solid Preparation The rapidly disintegrable solid preparation of the present invention thus obtained exhibits fast disintegrability or dissolubility in the oral cavity, water or stomach, and suitable strength of thf; preparation. Further the rapidly disintegrable solid preparation of the present :invention is improved in chalky taste and has no roughness.
9-1) Disintegration Time The orally disintegration time of the rapidly disintegrable solid preparation of the present invention (the time for healthy male or female adults to complete disintegration by buccal saliva) is usually 5 to 50 seconds, preferably 5 to 40 seconds, more preferably 5 to 35 seconds.
The disintegration time in the stomach of the rapidly disintegrable solid preparation of the present invention (the time for healthy male or female adults to complete disintegration) is shorter than that of the normal preparation such as a normal tablet.
The disintegration time of the rapidly disintegrable solid preparation of the present invention in water is usually 5 to 40 seconds, preferably 5 to 30 seconds, more preferably 5 to 25 seconds.
9-2) Strength of Preparation The strength of thf; rapidly disintegrable solid preparation of the present invention (measurement with a tablet hardness tester) is usually 2 to 20 kg, preferably 4 to 15 kg.
9-3) Administration Manner The rapidly disintegrable solid preparation of the invention is especially used for an orally disintegrable tablet and can be administered without water or together with water.
As administration methods, there are listed (1) a method of administration by dissolution or disintegration together with a little water, or without water and with saliva in the oral cavity, not to be swallowed as it is, or (2) a method of administration with water, where it is swallowed as it is. Also, the tablet may be administered dissolved or disintegrated with water.
The "orally disintegrable tablet" of the present invention is advantageously used in (a) cases where administration without water is necessary, (b) cases of administration to a patients who have difficulty in swallowing tablets, or (c) cases of administration to the aged or to children where there is a fear of blocking the throat if it is in usual tablet form.
The rapidly disintegrable solid preparation of the present invention can be safely administered orally to mammals such as mouse, rat, rabbit, cat, dog, bovine, horse, monkey, human and the like.
9-4) Dose and Specific Embodiments While the dosage amount of the rapidly disintegrable solid preparation varies depending on a pharmacologically active ingredient, a subject, a kind of disease and the like, the dosage amount is selected so that the dosage amount of the pharmacologically active ingredient can be an effective amount.
In case of the above (a), the orally disintegrable tablet is preferably used for antipyretic agents, analgesic: agents, anti-inflammatory agents, antianxiety drugs, antitussive-expectorants, anti motion sickness agents, drugs for prevention and treatment for car-sickness, and the like.
In case of the above (b), the orally disintegrable tablet is preferably used for preventing and/or treating Hypertension, hyperlipemia, diabetes, bronchial asthma, cerebrovascular diseases, and the like.
9-4-1) Lansoprazole For instance, when lansoprazole is used as the pharmacologically active ingredient, the rapidly disintegrable solid preparation of the present invention is useful for treatment and prevention of digestive ulcer (such as gastric ulcer, duodenal ulcer, anastomic ulcer, Zollinger-Ellison syndrome), gastritis, reflex esophagitis and the like;
eradication of H. pylori; suppression of upper gastrointestinal bleeding caused by digestive ulcer, acute stress ulcer and hemorrhagic gastritis; suppression of upper gastrointestinal bleeding caused by invasive stress (such as stress caused by a large-scale operation necessitating the following intensive management or cerebrovascular disease, head injury, failure of many organs, burn injury of a wide range which necessitate intensive care); treatment and prevention of ulcer caused by non-steroidal anti-inflammatory agent; treatment and prevention of gastric hyperacidity and ulcer caused by postoperative stress; administration before anesthesia and the like. The dosage amount of the preparation per an adult (body weight: 60 kg) is 0.5 to 1500 mg/day, preferably 5 to 150 mg/day, as lansoprazole.
9-4-2) Voglibose When voglibose is used as the pharmacologically active ingredient, the rapidly disintegrable solid preparation of tihe present invention is useful for treatment and prevention of obesity, adiposis, lipemia, diabetes meiiitus and the like. T he dosage.
amount of the preparation per an acjult (bode weight: 60 kg) is 0.01 to 30 mg/day, preferably 0.1 to 3 mg/day, as vogl:ibose. The rapidly disintegrable solid preparation can be administered once a day, or 2 to 3 times separately a day.
9-4-3) Manidipine ~ HCl When manidipine hydrochloride is used as the pharmacologically active ingredient, the rapidly disintegrable solid preparation of the present invention is useful for treatment and prevention of circulatory system diseases such as hypertension, ischemic heart disease (e.g., angina pectori, myocardial infarction and the like), cerebral and peripheral circulatory disorders (e.g., cerebral infarction, transient ischemic attack, constriction of renal artery and the like) and the Iike. The dosage amount of the preparation per an adult (body weight: 60 kg) is 1 to 200 mg/day, preferably 10 to 20 mg/day, as manidipine hydrochloride. The rapidly disintegrable solid preparation is usually administered once a day after breakfast .
9-4-4) Pioglitazone~HCl When pioglitazone hydrochloride is used as the pharmacologically active ingredient, the rapidly disintegrable solid preparation of the present invention is useful as the insulin resistance improving agent and the like, and for treatment and prevention of diabetes mellitus. The dosage; amount of the preparation per an adult (body weight: 60 kg) is 7.5 to 60 mg/day, preferably 15 to 45 mg/day, as pioglitazone hydrochloride. The rapidly disintegrable solid preparation can be administered once a day, or 2 to 3 times separately a day.
9-4-5) Candesartan Cilexetil Further, when candesartan cilexetil is used as the pharmacologically active ingredient, the rapidly disintegrable solid preparation of the present invention is useful for treatment and prevention of hypertension, heart diseases, cerebral apoplexy, renal diseases and the like. The dosage amount of the preparation per an adult (body weight:
60 kg) is 1 to 50 mg/day, preferably 2 to 30 mg/day, as candesartan cilexetil.
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention is more specifically explained by means of the following Reference Examples, Examples and Test Examples. It is to be understood that the present invention is not limited to these Examples.
Unless otherwise specifically indicated, the following "%" means % by weight.
Also, the content of hydroxypropoxyl group is measured in accordance with the methods described in Japanesa Pharmacopoeia (e.g., 13th edition). The physical properties (hardness and disintegration time) of the tablets were determined by the following test methods.
(1) Hardness test Determination was carried out with a tablet hardness tester [manufactured by Toyama Sangyo Co. Ltd. (Japan)]. The test was performed in 10 runs and mean values were shown.
(2) Oral disintegration time Time for complete disintegration or dissolution of the tablets only by saliva in the oral cavity was determined.
Examples Reference Example 1 An alkaline cellulose comprising 24.1 % of NaOH, 1.7 % of Na2C03, 42.9 % of cellulose, 31.8 % of H20 was obtained by immersing wood pulp in 49% aqueous solution of sodium hydroxide and then by pressing it. A reactor was charged with 100 parts by weight of the alkaline cellulose. Then, nitrogen gas replacement was carried out. After the replacement, 5 parts by weight of propylene oxide was charged in the reactor and reacted with stirnng at 40°C for 1 hour, at 50°C for 1 hour and at 70°C for 1 hour to provide 103 parts by weight of a reactant.
On the other hand, a kneader was charged with 2.5 parts by weight of hot water at 65°C and 0.13 parts by weight of glacial acetic acid ( 40 % by weight against equivalent for neutralization, initial neutralized acid) and therein, 1 part by weight of the above resulting alkaline cellulose was dispersed. Then, the temperature was adjusted at 30°C to dissolve a part of the reactant, and 0.20 part by weight of glacial acetic acid (remain of equivalent for neutralization, complete neutralized acid) to provide a processed fiber product containing a part of dissolution and a part of deposit.
The resulting product was washed with hot water at 80°C, drained, dried, ground by means of high rolling impact grinder, and sifted by means of a 100 mesh sieve to provide the powder of low-substituted hydroxypropylcellulose LH-33 (content of hydroxypropoxyl group: 5.8 % by weight, average particle diameter: 17.8 pm).
Reference Example 2 Powders of low-substituted hydroxypropylcellulose LH-23, which have a little bigger average particle diameter (content of hydroxypropyl group: 5.7 % by weight, average particle diameter: 30.8 ~,m) were obtained in the same manner as in Reference Example 1.
Example 1 {1) Production of powders having a core A centrifugal fluidized coating granulator (manufactured by Powrex Corp.
(Japan), MP-10] was charged with 900 g of Nonpareil 105 (trade name) (particle diameter: 100 to 200 pm). While the inlet air temperature and the outlet air temperature were controlled at 70°C and 30°C respectively, the Nonpareil was coated by spraying a spray liquid of the following composition prepared in advance in accordance with the tangential spray method at the spray rate of 22 g/min. Then, drying was carried out for minutes. The resulting granules were sieved through a #60 circular sieve (250 pm) and a #100 circular sieve (150 Vim) to provide 2186 g of powders (150 to 250 hum) having a core.
[Spray liquid]
Lansoprazole 927 g Magnesium carbonate 309 g Low-substituted hydroxypropylcellulose154.5 g (Content of hydroxypropyl group: 8.8 % by weight) (Average particle diameter: 17.57 pm) Hydroxypropylcellulose (Type SSL) 309 g Purified water 3955 g (2) Production of film-undercoated powders having a core A centrifugal fluidized coating granulator [manufactured by Powrex Corp.
(Japan), MP-10] was charged with 2040 g of the above powders having a core.
While the inlet air temperature and the outlet air temperature were controlled at 75°C and 40°C
respectively, an undercoating liquid of the following composition prepared in advance was sprayed in accordance with the tangential spray method at the spray rate of 13 g/min.
2145 g of film-undercoated powders having a core was obtained.
[Undercoating liquid]
Hydroxypropylmethylcellulose 264 g (Type 2910, viscosity: 3 centistokes) Purified water 5016 g (3) Production of enteric-coated powders having a core A centrifugal fluidized coating granulator [manufactured by Powrex Corp.
(Japan), MP-10] was charged with 1710 g of the above film-undercoated powders having a core. While the inlet air temperature and the outlet air temperature were controlled at 70°C and 40°C respectively, an enteric film coating liquid of the following composition prepared in advance was sprayed in accordance with the tangential spray method at the spray rate of 19 g/min. Thf;n, drying was carried out for 7 minutes. The resulting granules were sieved through a #42 circular sieve (355 Vim) and a #80 circular sieve (177 pm) to provide 2393 g of powders (177 to 355 pm) having a core.
[Enteric film coating liquid]
Eudragit L30D-55 5016.4 g Eudragit NE30D 559.0 g Triethyl citrate 333.7 g Glyceryl monostearate 106.5 g Polysorbate 80 34.8 g Red iron oxide 1.8 g Purified water 2547.1 g (4) Production of mannitol-overcoated enteric-coated powders having a core A centrifugal fluidized coating granulator [manufactured by Powrex Corp.
(Japan), MP-10] was charged with 600 g of the above enteric-coated powders having a core. While the inlet air temperature and the outlet air temperature were controlled at 65°C and 32°C respectively, a film coating liquid of the following composition prepared in advance was sprayed in aG~ordance with the tangential spray method at the spray rate of 11 g/min. Then, drying was carried out for 7 minutes. 617 g of overcoated enteric-coated powders having a core; was obtained.
[Film coating liquid]
Mannitol 33 g Purified water 297 g (5) Production of mannitol granulated powders A fluidized bed granulator [manufactured by Powrex Corp. (Japan), LAB-1]
was charged with 800 g of mannitol [manufactured by Merck Japan Co., Ltd.], and granulation was carried out while spraying 315 g of purified water. The granules were dried to provide 727.3 g of granulated powders.
(6) Production of mixed powders To 105 g of the above overcoated enteric-coated powders having a core were added 97.3 g of the above mannitol-granulated powders, 15.0 g of low-substituted hydroxypropyl cellulose LH-33 (content of hydroxypropoxyl group: 5.8 % by weight, average particle diameter: 17.8 p.m), 22.5 g of crystalline cellulose [CEOLUS
(trade mark), manufactured by Asahi Chemical Industry Co., Ltd. (Japan)], 7.5 g of crospovidone, 1.5 g of anhydrous citric acid, 0.45 g of aspartame and 0.75 g of magnesium stearate, which were admixed in a bag to give mixed powders.
(7) Production of orally disintegrable tablets 250 g of the above mixed powder was tabletted by a pounder (15R, 11 mm in diameter) using a rotary type tabletting machine at the tabletting pressure of 1.5 ton/cm2 to provide tablets each weighing 500 mg.
The hardness and oral disintegration time of each tablet thus obtained were 5.9 kg and 30 seconds respectively.
Example 2 (1) Production of granules having a core A centrifugal fluidized coating granulator [manufactured by Powrex Corp.
(Japan), MP-10 (Type 2)] was charged with 900 g of Nonpareil 105 (trade mark) (particle diameter of 100 to 200 ~.m). With the inlet air temperature and the temperature of the loading being controlled at 65 °C and about 30 °C respectively, the Nonpareil was coated by spraying a bulk liquid of the following composition prepared in advance in accordance with the tangential spray method at a spray rate of 22 g /min. The spraying operation was stopped when the specified amount 5661 g of the bulk liquid had been sprayed, and then drying was carried out in the granulator for 8 minutes. The resulting granules were sieved through a #42 circular sieve (350 Vim) and a #100 circular sieve (150 Vim) to provide 2074 g of granules having a core.
Bulk liquid:
Lansoprazole 1080 g Magnesium carbonate 360 g Low-substituted hydroxypropyl cellulose LH-32 180 g (hydroxypropoxyl group contents: 8.8 weight %) Hydroxypropyl cellulose (Type SSL) 360 g Purified water 4680 g (2) Production of film-undercoated granules having a core A centrifugal fluidized coating granulator [manufactured by Powrex Corp.
(Japan), MP-10 (Type 2)] was charged with 2074 g of the above granules having a core.
With the inlet air temperature and the temperature o.f the loading being controlled at 78 °C and about 40 °C, respectively, an undercoating liquid of the following composition prepared in advance was sprayed in accordance with the tangential spray method at a spray rate of 22 g /min. The. spraying operation was stopped when the specified amount 1980 g of the undercoating liquid had been sprayed, and then drying was carried out in the granulator for 9 minutes. The resulting granules were sieved through a #42 circular sieve (350 pm) and a #100 circular sieve (150 Vim) to provide 2555 g of film-undercoated granules having a core.
Undercoating liquid:
Hydroxypropylmethylcellulose 252 g (Type 2910, viscosity: 3 centistokes) Titanium oxide (TiOz) 1.08 g Sterilized Talc (trade name) 108 g [produced by Matsumura Sangyo Co. Ltd. (Japan)]
Low-substituted hydrox:ypropyl cellulose LH-32 180 g (hydroxypropoxyl group contents: 8.8 weight %) Mannitol 252 g Purified water 3600 g (3) Production of enteric coated granules having a core A centrifugal fluidized coating granulator [manufactured by Powrex Core.
(Japan), MP-10 (Type 2)] was charged with 1320 g of the above film-undercoated granules having a core. With the inlet air temperature and the temperature of the loading being controlled at 80 °C and about 42 °C, respectively, an enteric film coating liquid (A) of the following composition prepared in advance was sprayed in accordance with the tangential spray method at a spray rate of 22 g /min. The specified amount 1638 g of the enteric film coating liquid had been sprayed.
Enteric film coating liquid (A):
Eudragit L30D-55 1219.2 g Eudragit NE30D 134.4 g Polyethylene glycol 40.8 g Glyceryl monostearate 24.0 g Polysorbate 80 7.2 g Ferric oxide 0.24 g Ferric oxide (yellow) 0.24 g Citric acid anhydrous 0.48 g Purified water 1693 g Following this, with the inlet air temperature and the temperature of the loading being controlled at 76 °C and about 42 °C, respectively, an enteric film coating liquid (B) of the following composition prepared in advance was sprayed in accordance with the tangential spray method at a spray rate of 22 g /min. The specified amount 6552 g of the enteric film coating liquid had been sprayed.
Enteric film coating liquid (:B):
Eudragit I30D-SS 4032 g Eudragit NE30D 447.8 g Triethyl citrate 269.3 g Glyceryl monostearate 86.4 g Polysorbate 80 25.9 g Ferric oxide 0.86 g Ferric oxide (yellow) 0.86 g Citric acid anhydrous 0.72 g Purified water 2624 g Following this, with the inlet air temperature and the temperature of the loading being controlled at 80 °C and about 42 °C, respectively, an enteric film coating liquid (A) of the above mentioned composition prepared in advance was sprayed in accordance with the tangential spray method at a spray rate of 22 g /min. The specified amount 819 g of the enteric film coating liquid had been sprayed.
(4) Production of enteric coated and mannitol coated granules having a core Following (3), with the inlet air temperature and the temperature of the loading being controlled at 85 °C and about 35 °C, respectively, an film coating liquid of the following composition prepared in advance was sprayed in accordance with the tangential spray method at a spray rate of 22 g /min. using a centrifugal fluidized coating granulator [manufactured by Powrex Corp. (Japan), MP-10 (Type 2)]. The spraying operation was stopped vrrhen the specified amount 882 g of the film coating liquid had been sprayed, and then drying was carried out in the granulator for 10 minutes. The resulting granules were sieved through a #35 circular sieve (420 Vim) and a #60 circular sieve (250 P.m) to provide 1964 g of enteric coated and mannitol coated granules having a core.
The average particle diameter of the obtained granules was 333.7 Eun.
Film coating liquid:
Mannitol 180 g Purified water , 1080 g (S) Production of mixed powders To 270 g of the above enteric coated and mannitol coated granules having a core were added 204.0 g of mannitol, 30 g of low-substituted hydroxypropyl cellulose LH-33 h drox ro ox 1 rou contents: 5.8 wei ht % 30 of cr stalline cellulose ( Y YP P Y g h g )~ g Y
(CEOLUS KG-801 (trade mark), manufactured by Asahi Chemical Co., Ltd.
(Japan)], 15 g of crospovidone, 3 g of citric acid anhydrous, 9 g of aspartame, 6 g of magnesium stearate and 3 g of flavor [STRAWBERRY DURAROME (trade mark.), manufactured by WO 00/06126 PCT/,fP99/04015 Nihon Filmenich Co., Ltd. (Japan)], which was admixed in a bag to give mixed powders.
(6) Production of orally disintegrable tablets 570 g .of the above mixed powders were tabletted using Autograph (trade name;
compressing force measurement apparatus) with a punch having a beveled edge, 13 mm in diameter, at a tabletting pressure of 1.5 ton/cm2, to provide tablets each weighing 570 mg.
The hardness and oral disintegration time of each tablet thus obtained were 2.6 kg and 20 seconds, respectively.
The acid-resistance of the obtained tablet was 3.5 %.
Example 3 A fluidized bed granulator [manufactured by Powrex Corp. (Japan), LAB-1]
was charged with 0.6 g of voglibose, 410.4 g of erythritol [manufactured by Nikken Chemicals Co., Ltd. (Japan)], 120.0 g of low-substituted hydroxypropylcellulose LH-33 (content of hydroxypropoxyl group: 5.8 % by weight, average particle diameter:
17.8 pm), 30.0 g of CEOLUS KG-801 [manufactured by Asahi Chemical Industry Co., Ltd.
(Japan)], 30 g of crospovidone, 6.0 g of anhydrous citric acid and 1.2 g of aspartame, and granulation was carried out while spraying purified water. After drying, 1.8 g of magnesium stearate was incorporated. The resulting powder was tabletted by a pounder (beveled edge, 10 mm in diameter) using a rotary type tabletting machine at the tabletting pressure of 1.0 ton/cm2 to provide tablets each weighing 300 mg.
The hardness and oral disintegration time of each tablet thus obtained were 10.7 kg and 26 seconds respectively.
Example 4 A fluidized bed granulator [manufactured by Powrex Corp. (Japan), LAB-1]
was charged with 0.6 g of voglibose, 440.4 g of erythritol [manufactured by Nikken Chemicals Co., Ltd. (Japan)], 120.0 g of low-substituted hydroxypropylcellulose LH-33 (content of hydroxypropox:yl group: 5.8 % by weight, average particle diameter: 17.8 pm), 30.0 g of crospovidone, 6.0 g of anhydrous citric acid and 1.2 g of aspartame, and granulation was carried out while spraying purified water. After drying, 1.8 g of magnesium stearate was incorporated. The resulting powder was tabletted by a pounder (beveled edge, 10 mm in diameter) using a rotary type tabletting machine at the tabletting pressure of 1.U ton/cm2 to provide tablets each weighing 300 mg.
The hardness and oral disintegration time of each tablet thus obtained were 7.1 kg and 20 seconds respectively.
Example 5 A fluidized bed granulator (manufactured by Powrex Corp. (Japan), LAB-1]
was charged with 0.4 g of voglibose, 470.6 g of erythritol [manufactured by Nikken Chemicals Co., Ltd. (Japan)], 120.0 g of low-substituted hydroxypropylcellulose LH-33 (content of hydroxypropoxyl group: 5.7 % by weight, average particle diameter:
30.8 p,m), 6.0 g of anhydrous citric acid and 1.2 g of aspartame, and granulation was carried out while spraying purified water. After drying, 1.8 g of magnesium stearate was incorporated. The resulting powders was tabletted by a pounder (beveled edge, 10 mm in diameter) using a rotary type tabletting machine at the tabletting pressure of 1.25 ton/cmz to provide tablets each weighing 300 mg.
The hardness and oral disintegration time of each tablet thus obtained were 4.5 kg and 23 seconds respectively.
Example 6 A fluidized bed granulator [manufactured by Powrex Corp. {Japan), LAB-1]
was charged with 0.4 g of voglibose, 470.6 g of mannitol [manufactured by Merck Japan Co., Ltd.], 120.0 g of low-substituted hydroxypropylcellulose LH-23 {content of hydroxypropoxyl group: 5.7 % by weight, average particle diameter: 30.8 Vim), 6.0 g of anhydrous citric acid and 1.2 g of aspartame, and granulation was carried out while spraying purified water. After drying, 1.8 g of magnesium stearate was incorporated.
The resulting powder was tabletted by a pounder (beveled edge, 10 mm in diameter) using a rotary type tabletting machine at the tabletting pressure of 1.25 ton/cm2 to provide tablets each weighing 300 mg.
WO 00/06126 PCT/.fP99/04015 The hardness and oral disintegration time of each tablet thus obtained were 4.3 kg and 27 seconds respectively.
Example 7 A fluidized bed granulator [manufactured by Powrex Corp. (Japan), LAB-1]
was charged with 40.0 g of manidipine hydrochloride, 460.94 g of erythritol [manufactured by Nikken Chemicals Co., Ltd. (Japan)], 60.0 g of low-substituted hydroxypropylcellulose LH-33 (content of hydroxypropoxyl group: 5.8 % by weight, average particle diameter: 1'7.8 Vim), 30.0 g of crospovidone, 6.0 g of anhydrous citric acid and 1.2 g of aspartame, and granulation was carried out while spraying purified water in which was dissolved 0.06 g of yellow iron oxide. After drying, 1.8 g of magnesium stearate was incorporated. The resulting powder was tabletted by a pounder (beveled edge, 10 mm in diameter) using a rotary type tabletting machine at the tabletting pressure of 1.0 ton/cm2 to provide tablets each weighing 300 mg.
The hardness and oral disintegration time of each tablet thus obtained were 6.0 kg and 21 seconds respectively.
Test Example 2 Low-substituted hydroxypropylcellulose LH-30 (content of hydroxypropoxyl group: 14.6 % by weight, average particle diameter: 17.26 wm), LH-31 (content of hydroxypropoxyl group: 11.0 % by weight, average particle diameter: 18.18 Vim), LH-32 (content of hydroxypropoxyl group: 8.8 % by weight, average particle diameter:
17.57 pm) and LH-33 (content of hydroxypropoxyl group: 5.8 % by weight, average particle diameter: I7.8 pm) were administered to 4 females respectively, and dissolubility and taste were evaluated.
The results are shown in [Table 1].
[Table 1]
Low-substituted Trial subject Evaluation hydrox-yprop~lcellulose____.-_________________________________________ LH-30 4/4 difficult of dissolution in the oral cavity LH-31 4/4 dissolved in the oral cavity, chalky taste LH-32 4/4 dissolved in the oral cavity, chalky taste LH-33 4/4 dissolved in the oral cavity, no chalky taste As shown in [Table 1], dissolubility and chalky taste are improved, and further no roughness was felt, with respect to the case of low-substituted hydroxypropylcellulose LH-33 comprising 5.8 % by weight of hydroxypropoxyl group.
Test Example 2 Tablets were produced by using low-substituted hydroxypropylcellulose LH-30 (content of hydroxypropoxyl group: 14.6 % by weight, average particle diameter: 17.26 p,m), LH-31 (content of hydroxypropoxyl group: 11.0 % by weight, average particle diameter: 18.18 pm), LH-32 (content of hydroxypropoxyl group: 8.8 % by weight, average particle diameter: 17.57 wm) and LH-33 (content of hydroxypropoxyl group:
5.8 % by weight, average particle diameter: 17.8 N.m) in accordance with the following manner.
A fluidized bed granulator [manufactured by Powrex Corp. (Japan), LAB-lJ
was charged with 398.5 g of erythritol [manufactured by Nikken Chemicals Co., Ltd.
(Japan)] and 100 g of low-substituted hydroxypropylcellulose, and granulation was carried out while spraying purified water. After drying, 1.5 g of magnesium stearate was incorporated. The resulting powder was tabletted by a pounder (beveled edge, 10 mm in diameter) using a rotary type tabletting machine at the tabletting pressure of 1.0 ton/cmz to provide tablets each weighing 300 mg.
The resulting tablets were administered to 4 females respectively, and dissolubility and taste was evaluated.
The results are shown in [Table 2].
[Table 2J
Low-substituted Trial subject Evaluation hYdro~prowlcellulose____.___________________________________________.
- LH-30 4/4 not dissolved in the oral cavity LH-31 4/4 not dissolved in the oral cavity LH-32 4/4 felt adhesiveness in the oral cavity, still chalky taste after dissolution LH-33 4/4 rapidly dissolved in the oral cavity, a little chalky taste As shown in [Table; 2], dissolubility and chalky taste are improved, and further no roughness was felt, with respect to the case of low-substituted hydroxypropylcellulose LH-33 comprising 5.8 % by weight of hydroxypropoxyl group.
EFFECTS OF INVENTION
The rapidly disintegrable solid preparation of the present invention is usable for treatment and prevention of various kinds of diseases especially as the oral rapidly disintegrable solid preparation, which is capable of being administered to elders or children without water, because the preparation has superior disintegrability and dissolubility. It is also improved in its disintegrability in the stomach.
And, the rapidly disintegrable solid preparation has superior long-term stability because the preparation has suitable strength.
Further, the rapidly disintegrable solid preparation of the present invention is improved in dissolubility and chalky taste, and has no roughness.
9-1) Disintegration Time The orally disintegration time of the rapidly disintegrable solid preparation of the present invention (the time for healthy male or female adults to complete disintegration by buccal saliva) is usually 5 to 50 seconds, preferably 5 to 40 seconds, more preferably 5 to 35 seconds.
The disintegration time in the stomach of the rapidly disintegrable solid preparation of the present invention (the time for healthy male or female adults to complete disintegration) is shorter than that of the normal preparation such as a normal tablet.
The disintegration time of the rapidly disintegrable solid preparation of the present invention in water is usually 5 to 40 seconds, preferably 5 to 30 seconds, more preferably 5 to 25 seconds.
9-2) Strength of Preparation The strength of thf; rapidly disintegrable solid preparation of the present invention (measurement with a tablet hardness tester) is usually 2 to 20 kg, preferably 4 to 15 kg.
9-3) Administration Manner The rapidly disintegrable solid preparation of the invention is especially used for an orally disintegrable tablet and can be administered without water or together with water.
As administration methods, there are listed (1) a method of administration by dissolution or disintegration together with a little water, or without water and with saliva in the oral cavity, not to be swallowed as it is, or (2) a method of administration with water, where it is swallowed as it is. Also, the tablet may be administered dissolved or disintegrated with water.
The "orally disintegrable tablet" of the present invention is advantageously used in (a) cases where administration without water is necessary, (b) cases of administration to a patients who have difficulty in swallowing tablets, or (c) cases of administration to the aged or to children where there is a fear of blocking the throat if it is in usual tablet form.
The rapidly disintegrable solid preparation of the present invention can be safely administered orally to mammals such as mouse, rat, rabbit, cat, dog, bovine, horse, monkey, human and the like.
9-4) Dose and Specific Embodiments While the dosage amount of the rapidly disintegrable solid preparation varies depending on a pharmacologically active ingredient, a subject, a kind of disease and the like, the dosage amount is selected so that the dosage amount of the pharmacologically active ingredient can be an effective amount.
In case of the above (a), the orally disintegrable tablet is preferably used for antipyretic agents, analgesic: agents, anti-inflammatory agents, antianxiety drugs, antitussive-expectorants, anti motion sickness agents, drugs for prevention and treatment for car-sickness, and the like.
In case of the above (b), the orally disintegrable tablet is preferably used for preventing and/or treating Hypertension, hyperlipemia, diabetes, bronchial asthma, cerebrovascular diseases, and the like.
9-4-1) Lansoprazole For instance, when lansoprazole is used as the pharmacologically active ingredient, the rapidly disintegrable solid preparation of the present invention is useful for treatment and prevention of digestive ulcer (such as gastric ulcer, duodenal ulcer, anastomic ulcer, Zollinger-Ellison syndrome), gastritis, reflex esophagitis and the like;
eradication of H. pylori; suppression of upper gastrointestinal bleeding caused by digestive ulcer, acute stress ulcer and hemorrhagic gastritis; suppression of upper gastrointestinal bleeding caused by invasive stress (such as stress caused by a large-scale operation necessitating the following intensive management or cerebrovascular disease, head injury, failure of many organs, burn injury of a wide range which necessitate intensive care); treatment and prevention of ulcer caused by non-steroidal anti-inflammatory agent; treatment and prevention of gastric hyperacidity and ulcer caused by postoperative stress; administration before anesthesia and the like. The dosage amount of the preparation per an adult (body weight: 60 kg) is 0.5 to 1500 mg/day, preferably 5 to 150 mg/day, as lansoprazole.
9-4-2) Voglibose When voglibose is used as the pharmacologically active ingredient, the rapidly disintegrable solid preparation of tihe present invention is useful for treatment and prevention of obesity, adiposis, lipemia, diabetes meiiitus and the like. T he dosage.
amount of the preparation per an acjult (bode weight: 60 kg) is 0.01 to 30 mg/day, preferably 0.1 to 3 mg/day, as vogl:ibose. The rapidly disintegrable solid preparation can be administered once a day, or 2 to 3 times separately a day.
9-4-3) Manidipine ~ HCl When manidipine hydrochloride is used as the pharmacologically active ingredient, the rapidly disintegrable solid preparation of the present invention is useful for treatment and prevention of circulatory system diseases such as hypertension, ischemic heart disease (e.g., angina pectori, myocardial infarction and the like), cerebral and peripheral circulatory disorders (e.g., cerebral infarction, transient ischemic attack, constriction of renal artery and the like) and the Iike. The dosage amount of the preparation per an adult (body weight: 60 kg) is 1 to 200 mg/day, preferably 10 to 20 mg/day, as manidipine hydrochloride. The rapidly disintegrable solid preparation is usually administered once a day after breakfast .
9-4-4) Pioglitazone~HCl When pioglitazone hydrochloride is used as the pharmacologically active ingredient, the rapidly disintegrable solid preparation of the present invention is useful as the insulin resistance improving agent and the like, and for treatment and prevention of diabetes mellitus. The dosage; amount of the preparation per an adult (body weight: 60 kg) is 7.5 to 60 mg/day, preferably 15 to 45 mg/day, as pioglitazone hydrochloride. The rapidly disintegrable solid preparation can be administered once a day, or 2 to 3 times separately a day.
9-4-5) Candesartan Cilexetil Further, when candesartan cilexetil is used as the pharmacologically active ingredient, the rapidly disintegrable solid preparation of the present invention is useful for treatment and prevention of hypertension, heart diseases, cerebral apoplexy, renal diseases and the like. The dosage amount of the preparation per an adult (body weight:
60 kg) is 1 to 50 mg/day, preferably 2 to 30 mg/day, as candesartan cilexetil.
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention is more specifically explained by means of the following Reference Examples, Examples and Test Examples. It is to be understood that the present invention is not limited to these Examples.
Unless otherwise specifically indicated, the following "%" means % by weight.
Also, the content of hydroxypropoxyl group is measured in accordance with the methods described in Japanesa Pharmacopoeia (e.g., 13th edition). The physical properties (hardness and disintegration time) of the tablets were determined by the following test methods.
(1) Hardness test Determination was carried out with a tablet hardness tester [manufactured by Toyama Sangyo Co. Ltd. (Japan)]. The test was performed in 10 runs and mean values were shown.
(2) Oral disintegration time Time for complete disintegration or dissolution of the tablets only by saliva in the oral cavity was determined.
Examples Reference Example 1 An alkaline cellulose comprising 24.1 % of NaOH, 1.7 % of Na2C03, 42.9 % of cellulose, 31.8 % of H20 was obtained by immersing wood pulp in 49% aqueous solution of sodium hydroxide and then by pressing it. A reactor was charged with 100 parts by weight of the alkaline cellulose. Then, nitrogen gas replacement was carried out. After the replacement, 5 parts by weight of propylene oxide was charged in the reactor and reacted with stirnng at 40°C for 1 hour, at 50°C for 1 hour and at 70°C for 1 hour to provide 103 parts by weight of a reactant.
On the other hand, a kneader was charged with 2.5 parts by weight of hot water at 65°C and 0.13 parts by weight of glacial acetic acid ( 40 % by weight against equivalent for neutralization, initial neutralized acid) and therein, 1 part by weight of the above resulting alkaline cellulose was dispersed. Then, the temperature was adjusted at 30°C to dissolve a part of the reactant, and 0.20 part by weight of glacial acetic acid (remain of equivalent for neutralization, complete neutralized acid) to provide a processed fiber product containing a part of dissolution and a part of deposit.
The resulting product was washed with hot water at 80°C, drained, dried, ground by means of high rolling impact grinder, and sifted by means of a 100 mesh sieve to provide the powder of low-substituted hydroxypropylcellulose LH-33 (content of hydroxypropoxyl group: 5.8 % by weight, average particle diameter: 17.8 pm).
Reference Example 2 Powders of low-substituted hydroxypropylcellulose LH-23, which have a little bigger average particle diameter (content of hydroxypropyl group: 5.7 % by weight, average particle diameter: 30.8 ~,m) were obtained in the same manner as in Reference Example 1.
Example 1 {1) Production of powders having a core A centrifugal fluidized coating granulator (manufactured by Powrex Corp.
(Japan), MP-10] was charged with 900 g of Nonpareil 105 (trade name) (particle diameter: 100 to 200 pm). While the inlet air temperature and the outlet air temperature were controlled at 70°C and 30°C respectively, the Nonpareil was coated by spraying a spray liquid of the following composition prepared in advance in accordance with the tangential spray method at the spray rate of 22 g/min. Then, drying was carried out for minutes. The resulting granules were sieved through a #60 circular sieve (250 pm) and a #100 circular sieve (150 Vim) to provide 2186 g of powders (150 to 250 hum) having a core.
[Spray liquid]
Lansoprazole 927 g Magnesium carbonate 309 g Low-substituted hydroxypropylcellulose154.5 g (Content of hydroxypropyl group: 8.8 % by weight) (Average particle diameter: 17.57 pm) Hydroxypropylcellulose (Type SSL) 309 g Purified water 3955 g (2) Production of film-undercoated powders having a core A centrifugal fluidized coating granulator [manufactured by Powrex Corp.
(Japan), MP-10] was charged with 2040 g of the above powders having a core.
While the inlet air temperature and the outlet air temperature were controlled at 75°C and 40°C
respectively, an undercoating liquid of the following composition prepared in advance was sprayed in accordance with the tangential spray method at the spray rate of 13 g/min.
2145 g of film-undercoated powders having a core was obtained.
[Undercoating liquid]
Hydroxypropylmethylcellulose 264 g (Type 2910, viscosity: 3 centistokes) Purified water 5016 g (3) Production of enteric-coated powders having a core A centrifugal fluidized coating granulator [manufactured by Powrex Corp.
(Japan), MP-10] was charged with 1710 g of the above film-undercoated powders having a core. While the inlet air temperature and the outlet air temperature were controlled at 70°C and 40°C respectively, an enteric film coating liquid of the following composition prepared in advance was sprayed in accordance with the tangential spray method at the spray rate of 19 g/min. Thf;n, drying was carried out for 7 minutes. The resulting granules were sieved through a #42 circular sieve (355 Vim) and a #80 circular sieve (177 pm) to provide 2393 g of powders (177 to 355 pm) having a core.
[Enteric film coating liquid]
Eudragit L30D-55 5016.4 g Eudragit NE30D 559.0 g Triethyl citrate 333.7 g Glyceryl monostearate 106.5 g Polysorbate 80 34.8 g Red iron oxide 1.8 g Purified water 2547.1 g (4) Production of mannitol-overcoated enteric-coated powders having a core A centrifugal fluidized coating granulator [manufactured by Powrex Corp.
(Japan), MP-10] was charged with 600 g of the above enteric-coated powders having a core. While the inlet air temperature and the outlet air temperature were controlled at 65°C and 32°C respectively, a film coating liquid of the following composition prepared in advance was sprayed in aG~ordance with the tangential spray method at the spray rate of 11 g/min. Then, drying was carried out for 7 minutes. 617 g of overcoated enteric-coated powders having a core; was obtained.
[Film coating liquid]
Mannitol 33 g Purified water 297 g (5) Production of mannitol granulated powders A fluidized bed granulator [manufactured by Powrex Corp. (Japan), LAB-1]
was charged with 800 g of mannitol [manufactured by Merck Japan Co., Ltd.], and granulation was carried out while spraying 315 g of purified water. The granules were dried to provide 727.3 g of granulated powders.
(6) Production of mixed powders To 105 g of the above overcoated enteric-coated powders having a core were added 97.3 g of the above mannitol-granulated powders, 15.0 g of low-substituted hydroxypropyl cellulose LH-33 (content of hydroxypropoxyl group: 5.8 % by weight, average particle diameter: 17.8 p.m), 22.5 g of crystalline cellulose [CEOLUS
(trade mark), manufactured by Asahi Chemical Industry Co., Ltd. (Japan)], 7.5 g of crospovidone, 1.5 g of anhydrous citric acid, 0.45 g of aspartame and 0.75 g of magnesium stearate, which were admixed in a bag to give mixed powders.
(7) Production of orally disintegrable tablets 250 g of the above mixed powder was tabletted by a pounder (15R, 11 mm in diameter) using a rotary type tabletting machine at the tabletting pressure of 1.5 ton/cm2 to provide tablets each weighing 500 mg.
The hardness and oral disintegration time of each tablet thus obtained were 5.9 kg and 30 seconds respectively.
Example 2 (1) Production of granules having a core A centrifugal fluidized coating granulator [manufactured by Powrex Corp.
(Japan), MP-10 (Type 2)] was charged with 900 g of Nonpareil 105 (trade mark) (particle diameter of 100 to 200 ~.m). With the inlet air temperature and the temperature of the loading being controlled at 65 °C and about 30 °C respectively, the Nonpareil was coated by spraying a bulk liquid of the following composition prepared in advance in accordance with the tangential spray method at a spray rate of 22 g /min. The spraying operation was stopped when the specified amount 5661 g of the bulk liquid had been sprayed, and then drying was carried out in the granulator for 8 minutes. The resulting granules were sieved through a #42 circular sieve (350 Vim) and a #100 circular sieve (150 Vim) to provide 2074 g of granules having a core.
Bulk liquid:
Lansoprazole 1080 g Magnesium carbonate 360 g Low-substituted hydroxypropyl cellulose LH-32 180 g (hydroxypropoxyl group contents: 8.8 weight %) Hydroxypropyl cellulose (Type SSL) 360 g Purified water 4680 g (2) Production of film-undercoated granules having a core A centrifugal fluidized coating granulator [manufactured by Powrex Corp.
(Japan), MP-10 (Type 2)] was charged with 2074 g of the above granules having a core.
With the inlet air temperature and the temperature o.f the loading being controlled at 78 °C and about 40 °C, respectively, an undercoating liquid of the following composition prepared in advance was sprayed in accordance with the tangential spray method at a spray rate of 22 g /min. The. spraying operation was stopped when the specified amount 1980 g of the undercoating liquid had been sprayed, and then drying was carried out in the granulator for 9 minutes. The resulting granules were sieved through a #42 circular sieve (350 pm) and a #100 circular sieve (150 Vim) to provide 2555 g of film-undercoated granules having a core.
Undercoating liquid:
Hydroxypropylmethylcellulose 252 g (Type 2910, viscosity: 3 centistokes) Titanium oxide (TiOz) 1.08 g Sterilized Talc (trade name) 108 g [produced by Matsumura Sangyo Co. Ltd. (Japan)]
Low-substituted hydrox:ypropyl cellulose LH-32 180 g (hydroxypropoxyl group contents: 8.8 weight %) Mannitol 252 g Purified water 3600 g (3) Production of enteric coated granules having a core A centrifugal fluidized coating granulator [manufactured by Powrex Core.
(Japan), MP-10 (Type 2)] was charged with 1320 g of the above film-undercoated granules having a core. With the inlet air temperature and the temperature of the loading being controlled at 80 °C and about 42 °C, respectively, an enteric film coating liquid (A) of the following composition prepared in advance was sprayed in accordance with the tangential spray method at a spray rate of 22 g /min. The specified amount 1638 g of the enteric film coating liquid had been sprayed.
Enteric film coating liquid (A):
Eudragit L30D-55 1219.2 g Eudragit NE30D 134.4 g Polyethylene glycol 40.8 g Glyceryl monostearate 24.0 g Polysorbate 80 7.2 g Ferric oxide 0.24 g Ferric oxide (yellow) 0.24 g Citric acid anhydrous 0.48 g Purified water 1693 g Following this, with the inlet air temperature and the temperature of the loading being controlled at 76 °C and about 42 °C, respectively, an enteric film coating liquid (B) of the following composition prepared in advance was sprayed in accordance with the tangential spray method at a spray rate of 22 g /min. The specified amount 6552 g of the enteric film coating liquid had been sprayed.
Enteric film coating liquid (:B):
Eudragit I30D-SS 4032 g Eudragit NE30D 447.8 g Triethyl citrate 269.3 g Glyceryl monostearate 86.4 g Polysorbate 80 25.9 g Ferric oxide 0.86 g Ferric oxide (yellow) 0.86 g Citric acid anhydrous 0.72 g Purified water 2624 g Following this, with the inlet air temperature and the temperature of the loading being controlled at 80 °C and about 42 °C, respectively, an enteric film coating liquid (A) of the above mentioned composition prepared in advance was sprayed in accordance with the tangential spray method at a spray rate of 22 g /min. The specified amount 819 g of the enteric film coating liquid had been sprayed.
(4) Production of enteric coated and mannitol coated granules having a core Following (3), with the inlet air temperature and the temperature of the loading being controlled at 85 °C and about 35 °C, respectively, an film coating liquid of the following composition prepared in advance was sprayed in accordance with the tangential spray method at a spray rate of 22 g /min. using a centrifugal fluidized coating granulator [manufactured by Powrex Corp. (Japan), MP-10 (Type 2)]. The spraying operation was stopped vrrhen the specified amount 882 g of the film coating liquid had been sprayed, and then drying was carried out in the granulator for 10 minutes. The resulting granules were sieved through a #35 circular sieve (420 Vim) and a #60 circular sieve (250 P.m) to provide 1964 g of enteric coated and mannitol coated granules having a core.
The average particle diameter of the obtained granules was 333.7 Eun.
Film coating liquid:
Mannitol 180 g Purified water , 1080 g (S) Production of mixed powders To 270 g of the above enteric coated and mannitol coated granules having a core were added 204.0 g of mannitol, 30 g of low-substituted hydroxypropyl cellulose LH-33 h drox ro ox 1 rou contents: 5.8 wei ht % 30 of cr stalline cellulose ( Y YP P Y g h g )~ g Y
(CEOLUS KG-801 (trade mark), manufactured by Asahi Chemical Co., Ltd.
(Japan)], 15 g of crospovidone, 3 g of citric acid anhydrous, 9 g of aspartame, 6 g of magnesium stearate and 3 g of flavor [STRAWBERRY DURAROME (trade mark.), manufactured by WO 00/06126 PCT/,fP99/04015 Nihon Filmenich Co., Ltd. (Japan)], which was admixed in a bag to give mixed powders.
(6) Production of orally disintegrable tablets 570 g .of the above mixed powders were tabletted using Autograph (trade name;
compressing force measurement apparatus) with a punch having a beveled edge, 13 mm in diameter, at a tabletting pressure of 1.5 ton/cm2, to provide tablets each weighing 570 mg.
The hardness and oral disintegration time of each tablet thus obtained were 2.6 kg and 20 seconds, respectively.
The acid-resistance of the obtained tablet was 3.5 %.
Example 3 A fluidized bed granulator [manufactured by Powrex Corp. (Japan), LAB-1]
was charged with 0.6 g of voglibose, 410.4 g of erythritol [manufactured by Nikken Chemicals Co., Ltd. (Japan)], 120.0 g of low-substituted hydroxypropylcellulose LH-33 (content of hydroxypropoxyl group: 5.8 % by weight, average particle diameter:
17.8 pm), 30.0 g of CEOLUS KG-801 [manufactured by Asahi Chemical Industry Co., Ltd.
(Japan)], 30 g of crospovidone, 6.0 g of anhydrous citric acid and 1.2 g of aspartame, and granulation was carried out while spraying purified water. After drying, 1.8 g of magnesium stearate was incorporated. The resulting powder was tabletted by a pounder (beveled edge, 10 mm in diameter) using a rotary type tabletting machine at the tabletting pressure of 1.0 ton/cm2 to provide tablets each weighing 300 mg.
The hardness and oral disintegration time of each tablet thus obtained were 10.7 kg and 26 seconds respectively.
Example 4 A fluidized bed granulator [manufactured by Powrex Corp. (Japan), LAB-1]
was charged with 0.6 g of voglibose, 440.4 g of erythritol [manufactured by Nikken Chemicals Co., Ltd. (Japan)], 120.0 g of low-substituted hydroxypropylcellulose LH-33 (content of hydroxypropox:yl group: 5.8 % by weight, average particle diameter: 17.8 pm), 30.0 g of crospovidone, 6.0 g of anhydrous citric acid and 1.2 g of aspartame, and granulation was carried out while spraying purified water. After drying, 1.8 g of magnesium stearate was incorporated. The resulting powder was tabletted by a pounder (beveled edge, 10 mm in diameter) using a rotary type tabletting machine at the tabletting pressure of 1.U ton/cm2 to provide tablets each weighing 300 mg.
The hardness and oral disintegration time of each tablet thus obtained were 7.1 kg and 20 seconds respectively.
Example 5 A fluidized bed granulator (manufactured by Powrex Corp. (Japan), LAB-1]
was charged with 0.4 g of voglibose, 470.6 g of erythritol [manufactured by Nikken Chemicals Co., Ltd. (Japan)], 120.0 g of low-substituted hydroxypropylcellulose LH-33 (content of hydroxypropoxyl group: 5.7 % by weight, average particle diameter:
30.8 p,m), 6.0 g of anhydrous citric acid and 1.2 g of aspartame, and granulation was carried out while spraying purified water. After drying, 1.8 g of magnesium stearate was incorporated. The resulting powders was tabletted by a pounder (beveled edge, 10 mm in diameter) using a rotary type tabletting machine at the tabletting pressure of 1.25 ton/cmz to provide tablets each weighing 300 mg.
The hardness and oral disintegration time of each tablet thus obtained were 4.5 kg and 23 seconds respectively.
Example 6 A fluidized bed granulator [manufactured by Powrex Corp. {Japan), LAB-1]
was charged with 0.4 g of voglibose, 470.6 g of mannitol [manufactured by Merck Japan Co., Ltd.], 120.0 g of low-substituted hydroxypropylcellulose LH-23 {content of hydroxypropoxyl group: 5.7 % by weight, average particle diameter: 30.8 Vim), 6.0 g of anhydrous citric acid and 1.2 g of aspartame, and granulation was carried out while spraying purified water. After drying, 1.8 g of magnesium stearate was incorporated.
The resulting powder was tabletted by a pounder (beveled edge, 10 mm in diameter) using a rotary type tabletting machine at the tabletting pressure of 1.25 ton/cm2 to provide tablets each weighing 300 mg.
WO 00/06126 PCT/.fP99/04015 The hardness and oral disintegration time of each tablet thus obtained were 4.3 kg and 27 seconds respectively.
Example 7 A fluidized bed granulator [manufactured by Powrex Corp. (Japan), LAB-1]
was charged with 40.0 g of manidipine hydrochloride, 460.94 g of erythritol [manufactured by Nikken Chemicals Co., Ltd. (Japan)], 60.0 g of low-substituted hydroxypropylcellulose LH-33 (content of hydroxypropoxyl group: 5.8 % by weight, average particle diameter: 1'7.8 Vim), 30.0 g of crospovidone, 6.0 g of anhydrous citric acid and 1.2 g of aspartame, and granulation was carried out while spraying purified water in which was dissolved 0.06 g of yellow iron oxide. After drying, 1.8 g of magnesium stearate was incorporated. The resulting powder was tabletted by a pounder (beveled edge, 10 mm in diameter) using a rotary type tabletting machine at the tabletting pressure of 1.0 ton/cm2 to provide tablets each weighing 300 mg.
The hardness and oral disintegration time of each tablet thus obtained were 6.0 kg and 21 seconds respectively.
Test Example 2 Low-substituted hydroxypropylcellulose LH-30 (content of hydroxypropoxyl group: 14.6 % by weight, average particle diameter: 17.26 wm), LH-31 (content of hydroxypropoxyl group: 11.0 % by weight, average particle diameter: 18.18 Vim), LH-32 (content of hydroxypropoxyl group: 8.8 % by weight, average particle diameter:
17.57 pm) and LH-33 (content of hydroxypropoxyl group: 5.8 % by weight, average particle diameter: I7.8 pm) were administered to 4 females respectively, and dissolubility and taste were evaluated.
The results are shown in [Table 1].
[Table 1]
Low-substituted Trial subject Evaluation hydrox-yprop~lcellulose____.-_________________________________________ LH-30 4/4 difficult of dissolution in the oral cavity LH-31 4/4 dissolved in the oral cavity, chalky taste LH-32 4/4 dissolved in the oral cavity, chalky taste LH-33 4/4 dissolved in the oral cavity, no chalky taste As shown in [Table 1], dissolubility and chalky taste are improved, and further no roughness was felt, with respect to the case of low-substituted hydroxypropylcellulose LH-33 comprising 5.8 % by weight of hydroxypropoxyl group.
Test Example 2 Tablets were produced by using low-substituted hydroxypropylcellulose LH-30 (content of hydroxypropoxyl group: 14.6 % by weight, average particle diameter: 17.26 p,m), LH-31 (content of hydroxypropoxyl group: 11.0 % by weight, average particle diameter: 18.18 pm), LH-32 (content of hydroxypropoxyl group: 8.8 % by weight, average particle diameter: 17.57 wm) and LH-33 (content of hydroxypropoxyl group:
5.8 % by weight, average particle diameter: 17.8 N.m) in accordance with the following manner.
A fluidized bed granulator [manufactured by Powrex Corp. (Japan), LAB-lJ
was charged with 398.5 g of erythritol [manufactured by Nikken Chemicals Co., Ltd.
(Japan)] and 100 g of low-substituted hydroxypropylcellulose, and granulation was carried out while spraying purified water. After drying, 1.5 g of magnesium stearate was incorporated. The resulting powder was tabletted by a pounder (beveled edge, 10 mm in diameter) using a rotary type tabletting machine at the tabletting pressure of 1.0 ton/cmz to provide tablets each weighing 300 mg.
The resulting tablets were administered to 4 females respectively, and dissolubility and taste was evaluated.
The results are shown in [Table 2].
[Table 2J
Low-substituted Trial subject Evaluation hYdro~prowlcellulose____.___________________________________________.
- LH-30 4/4 not dissolved in the oral cavity LH-31 4/4 not dissolved in the oral cavity LH-32 4/4 felt adhesiveness in the oral cavity, still chalky taste after dissolution LH-33 4/4 rapidly dissolved in the oral cavity, a little chalky taste As shown in [Table; 2], dissolubility and chalky taste are improved, and further no roughness was felt, with respect to the case of low-substituted hydroxypropylcellulose LH-33 comprising 5.8 % by weight of hydroxypropoxyl group.
EFFECTS OF INVENTION
The rapidly disintegrable solid preparation of the present invention is usable for treatment and prevention of various kinds of diseases especially as the oral rapidly disintegrable solid preparation, which is capable of being administered to elders or children without water, because the preparation has superior disintegrability and dissolubility. It is also improved in its disintegrability in the stomach.
And, the rapidly disintegrable solid preparation has superior long-term stability because the preparation has suitable strength.
Further, the rapidly disintegrable solid preparation of the present invention is improved in dissolubility and chalky taste, and has no roughness.
Claims (21)
1. An orally rapidly disintegrable solid preparation which comprises:
(i) lansoprazole;
(ii) a sugar in an amount of 5 to 97 parts by weight per 100 parts by weight of the solid preparation; and (iii) a low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of a hydroxypropoxyl group, in an amount of 3 to 50 parts by weight per 100 parts by weight of the solid preparation.
(i) lansoprazole;
(ii) a sugar in an amount of 5 to 97 parts by weight per 100 parts by weight of the solid preparation; and (iii) a low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of a hydroxypropoxyl group, in an amount of 3 to 50 parts by weight per 100 parts by weight of the solid preparation.
2. The preparation of claim 1, which is a tablet.
3. The preparation of claim 1 or 2, wherein the sugar is a sugar alcohol.
4. The preparation of claim 3, wherein the sugar alcohol is mannitol or erythritol.
5. The preparation of claim 2, which disintegrates in buccal saliva of a healthy adult within 5 to 50 seconds and in water within 5 to 40 seconds; and has a hardness of 2 to 20 kg as measured with a tablet hardness tester.
6. The preparation of claim 5, wherein the sugar is a sugar alcohol.
7. The preparation of any one of claims 1 to 6, which further comprises a basic inorganic salt of sodium, potassium, magnesium or calcium, for stabilizing lansoprazole.
8. The preparation of any one of claims 1 to 7, which comprises fine granules.
9. The preparation of claim 8, wherein lansoprazole is contained in the fine granules of the solid preparation.
10. The preparation of claim 9, wherein the sugar and the low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group are contained in the solid preparation separately from the fine granules.
11. The preparation of claim 10, wherein the sugar is contained in an amount of 5 to 97 parts by weight per 100 parts by weight of the rest of the solid preparation other than the fine granules.
12. The preparation of claim 10, wherein the low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group is contained in an amount of 3 to 50 parts by weight per 100 parts by weight of the rest of the solid preparation other than the fine granules.
13. Use of a low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group for producing an orally rapidly disintegrable solid preparation comprising lansoprazole and a sugar in an amount of 5 to 97 parts by weight of the solid preparation, wherein the low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropyl group is used in an amount of 3 to 50 parts by weight per 100 parts by weight of the solid preparation.
14. A method for improving fast oral disintegrability of a solid preparation comprising lansoprazole and a sugar, which method comprises incorporating a low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropoxyl group in the solid preparation, wherein the sugar and the low-substituted hydroxypropylcellulose having 5 % by weight or more to less than 7 % by weight of hydroxypropyl group are employed in amounts of 5 to 97 parts by weight and 3 to 50 parts by weight, respectively, per 100 parts by weight of the solid preparation.
15. An orally rapidly disintegrable pharmaceutical tablet which consists essentially of:
(i) 0.05 to 30% by weight of lansoprazole;
(ii) 50 to 80% by weight of at least one sugar alcohol selected from the group consisting of mannitol and erythritol;
(iii) 5 to 40% by weight of a low-substituted hydroxypropylcellulose having 5% by weight or more to less than 7% by weight of a hydroxypropyl group and an average particle diameter of 5 to 60 µm; and (iv) at least one other ingredient selected from binders, acids, foaming agents, artificial sweeteners, flavorants, lubricants, colorants, stabilizers, excipients and disintegrators, wherein the tablet has a hardness of 2 to 20 kg as measured by a tablet hardness tester.
(i) 0.05 to 30% by weight of lansoprazole;
(ii) 50 to 80% by weight of at least one sugar alcohol selected from the group consisting of mannitol and erythritol;
(iii) 5 to 40% by weight of a low-substituted hydroxypropylcellulose having 5% by weight or more to less than 7% by weight of a hydroxypropyl group and an average particle diameter of 5 to 60 µm; and (iv) at least one other ingredient selected from binders, acids, foaming agents, artificial sweeteners, flavorants, lubricants, colorants, stabilizers, excipients and disintegrators, wherein the tablet has a hardness of 2 to 20 kg as measured by a tablet hardness tester.
16. The tablet of claim 15, which disintegrates in buccal saliva of a human adult within 5 to 50 seconds.
17. The tablet of claim 15 or 16, wherein the ingredient (iv) comprises:
anhydrous citric acid as the acid; and magnesium stearate as the lubricant.
anhydrous citric acid as the acid; and magnesium stearate as the lubricant.
18. The tablet of any one of claims 15 to 17, wherein the ingredient (iv) comprises:
2 to 40% by weight of crystalline cellulose as the binder.
2 to 40% by weight of crystalline cellulose as the binder.
19. The tablet of any one of claims 15 to 18, wherein the low-substituted hydroxypropylcellulose has an average particle diameter of 10 to 25 µm.
20. The tablet of any one of claims 15 to 18, wherein the low-substituted hydroxypropylcellulose has an average particle diameter of 26 to 40 µm.
21. A process for producing the tablet as defined in any one of claims 15 to 20, which comprises:
blending the ingredients (i), (ii), (iii) and (iv) except for magnesium stearate when magnesium stearate is employed as the lubricant, in a granulator while spraying water and then drying, to obtain granules;
where magnesium stearate is employed, adding magnesium stearate to the granules; and tabletting the resulting granules at a pressure of 0.5 to 3 ton/cm2.
blending the ingredients (i), (ii), (iii) and (iv) except for magnesium stearate when magnesium stearate is employed as the lubricant, in a granulator while spraying water and then drying, to obtain granules;
where magnesium stearate is employed, adding magnesium stearate to the granules; and tabletting the resulting granules at a pressure of 0.5 to 3 ton/cm2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CA002525555A CA2525555A1 (en) | 1998-07-28 | 1999-07-27 | Rapidly disintegrable solid preparation |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10/213049 | 1998-07-28 | ||
JP21304998 | 1998-07-28 | ||
PCT/JP1999/004015 WO2000006126A1 (en) | 1998-07-28 | 1999-07-27 | Rapidly disintegrable solid preparation |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CA002525555A Division CA2525555A1 (en) | 1998-07-28 | 1999-07-27 | Rapidly disintegrable solid preparation |
Publications (2)
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CA2338792A1 CA2338792A1 (en) | 2000-02-10 |
CA2338792C true CA2338792C (en) | 2006-01-17 |
Family
ID=16632688
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CA002581111A Abandoned CA2581111A1 (en) | 1998-07-28 | 1999-07-27 | Rapidly disintegrable solid preparation |
CA002338792A Expired - Lifetime CA2338792C (en) | 1998-07-28 | 1999-07-27 | Rapidly disintegrable solid preparation |
CA002525555A Withdrawn CA2525555A1 (en) | 1998-07-28 | 1999-07-27 | Rapidly disintegrable solid preparation |
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CA002581111A Abandoned CA2581111A1 (en) | 1998-07-28 | 1999-07-27 | Rapidly disintegrable solid preparation |
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CA002525555A Withdrawn CA2525555A1 (en) | 1998-07-28 | 1999-07-27 | Rapidly disintegrable solid preparation |
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US (4) | US20060182802A1 (en) |
EP (2) | EP1100469B1 (en) |
JP (3) | JP3404648B2 (en) |
KR (1) | KR100536783B1 (en) |
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AR (2) | AR019935A1 (en) |
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AU (1) | AU4802099A (en) |
CA (3) | CA2581111A1 (en) |
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HK (2) | HK1035501A1 (en) |
MY (2) | MY151098A (en) |
PT (2) | PT1100469E (en) |
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