JPH09309822A - Intraoral dissolving-type quick dissolving tablet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject formulation usually dissolving in the oral cavity for 15-30sec and suitable for applying to an infant, a senile or a serious patient, etc., difficult in tablet taking. SOLUTION: A formulation contains a medical additive comprising a sugaralcohol such as xylite or a sugar and having high dissolving rate in water as a main component of a tablet constituting component. In pelletizing the tablet containing the medicine by a wet pelletizing method, a kneaded material of the medical additive having high dissolving rate in water with a medicine is subjected to compression molding before drying under a compression molding force of 50-300kg. In the kneaded material, xylite is kneaded with lactose in a ratio of, e.g. 8:2 to obtain the objective formulation having sufficient tensile strength with keeping a short intraoral dissolving time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an orally-dissolving fast-dissolving tablet which contains a drug and is rapidly dissolved in the oral cavity. The fast-dissolving tablet is a tablet that normally dissolves in the oral cavity within 15 seconds to 3 minutes, and is a formulation suitable for application to infants, the elderly, critically ill patients, etc. who have difficulty taking tablets.

[0002]

2. Description of the Related Art For oral administration of pharmaceuticals, dosage forms such as tablets, granules, powders and liquids are considered. Liquids such as syrups are easy to swallow, and are therefore suitable for administration to elderly people and infants with weak physical strength. However,
This one must be weighed exactly each time you take it,
Lack of convenience. In addition, it is liable to be deteriorated by heat or outside air, and has a drawback that the chemical and physical stability of the drug is poor. Granules and powders do not have the above drawbacks,
It lacks the ease of swallowing and has the drawback that it is difficult to take the exact amount unless water and the like are simultaneously taken.

[0003] Tablets are suitable for accurately administering a fixed volume, and the chemicals contained therein are excellent in chemical and physical stability, but have the drawback that they are difficult to swallow, especially for infants, the elderly, and critically ill patients. Have If the drawbacks that are difficult to swallow can be overcome, it is possible to provide an excellent formulation that eliminates the drawbacks of other dosage forms. In order to overcome the drawback of the tablet that it is difficult to swallow, recently, a freeze-dried preparation having a tablet form mainly composed of a water-soluble polymer has been developed (JP-A-53-44619, JP-A-53-44619).
3-86837, etc.). This overcomes the drawback of tablets that are difficult to swallow by rapidly dissolving the formulation in the oral cavity. However, this requires the use of a special formulation technique called freeze-drying, and has disadvantages such as difficulty in industrial mass production, high production cost, poor physical stability, and the like.

By the way, in recent years, tablets have been produced by compressing the components contained in the tablet in a dry state with a strong force.
This is because tablets are originally designed to disintegrate in the digestive tract to absorb drugs, and are required to be physicochemically stable after tableting until they reach the digestive tract. This is because it is necessary to strongly bond them to each other by the compression pressure. There was a wet tablet in the old days, and there was a method of making a tablet by inserting it into a mold in a damp state and then forming it into a tablet shape. However, since this tablet also intended to disintegrate in the digestive tract, it was not rapidly dissolved in the oral cavity. Also, this tablet
Since it is not mechanically strongly compressed and has a weak force to maintain its shape, it cannot be put to practical use today.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide an orally dissolving fast-dissolving tablet which can be produced by a simple method without relying on the special formulation technique of freeze-drying.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the inventors of the present invention have conducted extensive studies and found that a tablet containing a drug additive having a fast dissolution rate in water as a main constituent of the tablet was The inventors have found that the above object can be achieved by producing a tablet by partially changing the tablet manufacturing method by the wet granulation method, and completed the present invention.

The gist of the present invention is that the main constituent of the tablet constituent is a pharmaceutical additive having a high dissolution rate in water,
It is to be compression-molded in a wet state with a kneaded product of a drug additive and a drug having a high dissolution rate in water.
There are two points.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is described in detail below. The pharmaceutical additive having a high dissolution rate in water may be any water-soluble crystalline or powdery solid substance, and examples thereof include those commonly used as excipients.
However, since the fast dissolving tablet of the present invention dissolves quickly in the oral cavity, it is usually preferable that the tablet is a sweet substance. Examples of such substances include saccharides such as sucrose, lactose, glucose, and fructose. Further, sugar alcohols such as xylit, sorbit and mannitol can be mentioned.

Among the sugar alcohols mentioned above, xylit is more preferable because it has a good taste and has the highest dissolution rate in the oral cavity. Further, mannitol and lactose are inferior to xylit in taste and dissolution rate, but are excellent in compressibility described later. In the present invention, these can be used in combination. By combining them, it is also possible to obtain only those advantages.

The fast-dissolving tablet according to the present invention is a conventional manufacturing method in which tablets are tableted by a wet granulation method, and during compression molding, a kneaded product of the above-mentioned drug additive and drug, which has a high dissolution rate in water, is dried. It is manufactured by compression molding before. It differs from a conventional tablet produced by mixing tablet raw materials, adding a binder, kneading, etc., followed by drying and then compression molding, in that the order of the molding operation and the drying operation is reversed.

A relatively low pressure, for example 50 to 1000 kg, is sufficient as the compression molding pressure for molding the fast dissolving tablet according to the present invention. The lower the pressure is, the shorter the dissolution time in the oral cavity tends to be. However, if the pressure is lower than 50 kg, the tensile strength is usually lowered, and it is difficult to use for practical use. On the other hand, the higher the pressure is, the more the tensile strength is improved and the stronger one tends to be obtained. However, when the pressure is higher than 1000 kg, the oral dissolution time is usually long. However, even if it is less than 50 kg, depending on the combination of two or more kinds of the above-mentioned excipients, it may be possible to obtain a practically usable one, and even at a pressure higher than 1000 kg, two or more kinds may be obtained. Depending on the combination of the above-mentioned pharmaceutical excipients, those having a short oral dissolution time may be obtained. Therefore, 50-1000kg
Even a fast-dissolving tablet produced outside the compression molding pressure of (1) is included in the present invention.

Here, generally, a tablet having a tensile strength of 5 kg / cm ² or more can be sufficiently put into practical use. However, depending on the packaging form, there are cases in which even smaller packages can be put to practical use. The strength of the quick-dissolving tablet according to the present invention is
It is mainly maintained by the cross-linking force of pharmaceutical additives that have a high dissolution rate in water. In general, tablets have a compression molding pressure of 50.
It is manufactured at 0 to 3000 kg.

When sugar alcohol is applied in the present invention, for example, when xylit is used alone,
The compression molding pressure is preferably about 50 to 300 kg.
If it is less than this, it is difficult to mold, while if it is more than this, the tensile strength becomes low and it becomes difficult to put it into practical use (see FIG. 1).

When only xylit is used as the sugar alcohol, if the compression molding pressure is set to 300 kg or more, the tensile strength decreases and the dissolution time in the oral cavity becomes long. However, when lactose or mannitol is mixed with xylit, a sufficiently high tensile strength and short dissolution time in the oral cavity can be obtained even when the compression molding pressure is 300 kg or more. For example, when using a combination of xylit and lactose,
By mixing xylit and lactose at a ratio of 8: 2, for example, it is possible to obtain one having a short oral dissolution time and a sufficient tensile strength (see FIG. 2).

For example, in the case of using xylit and mannitol in combination, by mixing them at a ratio of 8: 2, for example, one having a short oral dissolution time and a sufficient tensile strength can be obtained. (See FIG. 3).

By mixing xylit with lactose or mannite as described above, better results can be obtained than with xylit alone. However, this result was unexpected from the results of mannitol alone or lactose alone. This is because when mannitol alone or lactose alone is used, the tensile strength increases with a compression molding pressure of 300 kg or more, but the dissolution time in the oral cavity also increases remarkably (see FIG. 4).

The fast-dissolving tablet according to the present invention is characterized by being rapidly dissolved in the oral cavity. However, for example, in the case of containing a drug which may cause harmful effects as it is, such as in the case of tight bitterness, it is appropriate. Such a harmful effect can be removed by taking measures such as inclusion in the fast-dissolving tablet of the present invention after performing a masking treatment represented by, for example, microencapsulation and crystal surface coating.

A kneaded product of a drug additive having a high dissolution rate in water and a drug is usually prepared by mixing the drug additive having a fast dissolution rate in water and a drug treated appropriately,
To this, water, a binder solution or a saturated solution of sugar is added, uniformly dispersed, and kneaded to produce. Water to be added is preferably about 1 to 10% by weight, and most preferably about 3% by weight in the constitutional components of the tablet before compression molding. If the amount of water added is too large, the sugar alcohol or sugar dissolves, or the ability to maintain the form is weakened, so that favorable results cannot be obtained in the subsequent compression molding, and furthermore, it is difficult to dry the molded product. . If the amount of water added is too small, tableting troubles such as creaking will occur during compression molding, and this cannot be performed favorably, and even if molded, its strength will be weak and it will easily collapse. As the water to be added, for example, purified water or the like is preferable.

The compression molding may be carried out in a wet state of a kneaded product of a drug additive having a high dissolution rate in water and a drug, and may be carried out in any of a granular form, a granular form, a soft lump form and the like. . Examples of the compression molding machine include a general tableting machine, a Japanese confectionery automatic compression molding machine, and a sugar sugar manufacturing device.

As described above, the fast-dissolving tablet according to the present invention can be produced by only partially changing the conventional method for producing a tablet by the wet granule compression method. Therefore, the freeze-drying technique is used. It is simpler than mass production and can be mass-produced.

In the present invention, a known binder can be added in the course of the kneading operation for the purpose of further improving the physical properties of the preparation. The binder applied to the present invention is not particularly limited, but a substance having a relatively high dissolution rate is preferred. Examples of such a binder include polyvinylpyrrolidone (PVP), hydroxypropylcellulose (HPC), hydroxypropylmethylcellulose (HPMC), and the like. In addition, gum arabic or the like can be appropriately contained. The binder applied to the present invention is 0.1 to 0.1 in the constituent components of the tablet before compression molding.
It can contain several wt%, more preferably, 0.
About 5 to 1% by weight can be contained.

In the fast-dissolving tablet according to the present invention, after compression-molding and drying, steam is applied for 1 to several seconds for glazing to smooth the surface of the tablet and improve the appearance.
Wear of the tablet surface can be prevented. Pharmaceuticals that can be applied to the fast-dissolving tablet according to the present invention are not particularly limited as long as they are intended for oral administration.
Examples of such a drug include the following.

1. Antipyretic / analgesic / anti-inflammatory agent indomethacin, aspirin, diclofenac sodium, ketoprofen, ibuprofen, mefenamic acid, dexamethasone, dexamethasone sodium sulfate,
Hydrocortisone, prednisolone, azulene, phenacetin, isopropylantipyrine, acetaminophen, benzitamine hydrochloride, phenylbutazone, flufenamic acid, mefenamic acid, sodium salicylate, choline salicylate, sazapyrine, clofezone, etodolac. 2. Anti-ulcer agents sulpiride, cetraxate hydrochloride, gefarnate, irsogladine maleate, cimetidine, ranitidine hydrochloride, famotidine, nizatidine, roxatidine hydrochloride acetate. 3. Coronary vasodilator nifedipine, isosorbitide dinitrate, diltiazem hydrochloride, trapidil, diviridamol, dilazep hydrochloride, methyl 2,6-dimethyl-4- (2-nitrophenyl)-
5- (2-oxo-1,3,2-dioxaphosphorinan-2-yl) -1,4-dihydropyridine-3-carboxylate, verapamil, nicardipine, nicardipine hydrochloride, verapamil hydrochloride.

4. Peripheral vasodilators ifenprodil tartrate, cinepaside maleate, cyclanderate, cinnarizine, pentoxifylline. 5. Antibiotics ampicillin, amoxicillin, cephalexin, erythromycin ethylsuccinate, bacampicillin hydrochloride, minocycline hydrochloride, chloramphenicol, tetracycline, erythromycin. 6. Synthetic antibacterial agents nalidixic acid, pyromidic acid, pipemidic acid trihydrate, enoxacin, sinoxacin, ofloxacin, norfloxacin, ciprofloxacin hydrochloride, sulfamethoxazole trimethoprim, 6-fluoro-1-methyl-7
-[4- (5-Methyl-2-oxo-1,3-dioxolen-4-yl) methyl-1-piperazinyl] -4-oxo-4H [1,3] thiazeto [3,2-a] quinoline- 3-carboxylic acid. 7. Antispasmodic propantheline bromide, atropine sulfate, oxapium bromide, thimebidium bromide, butylscopolamine bromide, trospium chloride, butropium bromide, N-methylscopolamine methylsulfate, methyloctatropin bromide.

8. Anti-asthma drug Theophylline, aminophylline, methylephedrine hydrochloride, procaterol hydrochloride, trimethoquinol hydrochloride, codeine phosphate, sodium cromoglycate, tranilast, dextromethorphan hydrobromide, dimemorphan phosphate, clobutynol hydrochloride, hominoben hydrochloride. , Benproperin phosphate, Tipepidine hibenzate, Eplazinone hydrochloride, Clofedanol hydrochloride, Ephedrine hydrochloride, Noscapine, Carbetapentene citrate, Oxerazine tannate, Isoaminyl citrate. 9. Bronchodilators diprophylline, salbutamol sulfate, chlorprenaline hydrochloride, formoterol fumarate, orciprenaline sulfate, pirbuterol hydrochloride, hexoprenaline sulfate, bitolterol mesylate, clenbuterol hydrochloride, terbutaline sulfate, mabuterol hydrochloride, fenoterol hydrobromide, methoxyphenamine hydrochloride. . 10. Diuretic furosemide, acetazolamide, trichlormethiazide,
Methiclotiazide, hydrochlorothiazide, hydroflumethiazide, ethiazide, cyclopenthiazide, spironolactone, triamterene, fluorothiazide, piretanide, mefluside, ethacrynic acid, azosemide, clofenamide.

11. Muscle relaxants chlorphenesin carbamate, tolperisone hydrochloride, eperisone hydrochloride, tizanidine hydrochloride, mephenesin, chlorzoxazone, fenprobamate, metcarbamol,
Chlormezanone, Pridinol mesylate, Afloqualone, Baclofen, Sodium dantrolene. 12. Brain metabolism improver. Meclofenoxate hydrochloride. 13. Minor tranquilizers Oxazolam, diazepam, clothiazepam, medazepam, temazepam, fludiazepam, meprobamate, nitrazepam, chlordiazepoxide. 14． Major tranquilizer sulpiride, clocapramine hydrochloride, zotepine, chlorpromazine, haloperidol. 15. β-blocker pindolol, propranolol hydrochloride, carteolol hydrochloride, metoprolol tartrate, labetalol hydrochloride, acebutolol hydrochloride, bufetrol hydrochloride, alprenolol hydrochloride, alotinolol hydrochloride, oxprenolol hydrochloride, nadolol, bucumolol hydrochloride, indenolol hydrochloride, timolol maleate , Befnolol hydrochloride, bupranolol hydrochloride.

16. Antiarrhythmic agents Procainamide hydrochloride, Disopyramide, Ajmaline, Quinidine sulfate, Aprindine hydrochloride, Propafenone hydrochloride,
Mexiletine hydrochloride. 17． Gout remedy Allopurinol, probenecid, colchicine, sulfinpyrazone, benzbromarone, bucolome. 18. Anticoagulant ticlopidine hydrochloride, dicoumarol, warfarin potassium. 19. Antiepileptic agents phenytoin, sodium valproate, metalbital, carbamazepine. 20. Antihistamines Chlorpheniramine maleate, clemastine fumarate, mequitazine, alimemazine tartrate, cycloheptadine hydrochloride. 21. Antiemetics diphenidol hydrochloride, metoclopramide, domperidone, betahistine mesylate, trimebutine maleate.

22. Antihypertensive agents Dimethylaminoethyl reserpine hydrochloride, resinamine,
Methyldopa, prazosin hydrochloride, bunazosin hydrochloride, clonidine hydrochloride, budralazine, urapidil. 23. Sympathomimetics dihydroergotamine mesylate, isoproterenol hydrochloride, etilefrine hydrochloride. 24. Dissolvents Bromhexine hydrochloride, Carbocystine, Ethylcystine hydrochloride, Methylcystine hydrochloride. 25. Oral anti-diabetic agents Glibenglamide, Tolbutamide, Grimidine sodium. 26. Cardiovascular agent Ubidecarenone, ATP-2Na. 27. Iron agent Ferrous sulfate, dried iron sulfate. 28. Vitamin agents Vitamin B ₁ , vitamin B ₂ , vitamin B ₆ , vitamin B ₁₂ , vitamin C, folic acid. 29. Frequental urine treatment flavoxate hydrochloride, oxybutynin hydrochloride, telolizine hydrochloride, 4-diethylamino-1,1-dimethyl-2-butynyl (±) -α-cyclohexyl-α-phenylglycolate hydrochloride monohydrate. 30. Angiotensin-converting enzyme inhibitor Enalapril maleate, alacepril, delapril hydrochloride.

[0029]

The fast dissolving tablet according to the present invention has the following effects. (1) It can be expected to improve compliance such that the drug can be safely administered to elderly people, children, infants, patients with poor swallowing ability, and the like. (2) Safety is increased without worrying about suffocation due to physical obstacles during administration. (3) It can be safely administered to patients with limited water. (4) It is easy to carry and suitable for patients to carry. (5) There is no need for weighing, which is an essential drawback of liquid agents. (6) Since the drug can be kept in a high concentration in the tablet, it can be applied to a drug requiring a high dose. (7) Compared with the freeze-drying method, industrial production can be performed easily, efficiently, and in large quantities.

[0030]

EXAMPLES The present invention will be described in more detail with reference to the following examples. Example 1 2 ml of purified water was added to 60 g of xylit, mixed and kneaded in a mortar. Take 1 g of the kneaded product and use an autograph material tester (AG-5000 type: manufactured by Shimadzu Corporation) to obtain a molding pressure of 100.
~ 700kg, compression speed was 20mm / min. Then, in a hot-air circular oven (GT-100 type: manufactured by Alp), the mixture was allowed to stand at 50 ° C. for 2 hours and dried to obtain the fast-dissolving tablet of the present invention. Example 2 48 g of xylite and 12 g of lactose were uniformly mixed in a mortar,
2 ml of purified water was added and kneaded. 1 g of the kneaded product was taken and compressed into a tablet diameter of 13 mmφ at a molding pressure of 100 to 700 kg and a compression speed of 20 mm / min with an autograph material testing machine (AG-5000 type: manufactured by Shimadzu Corporation). Then, in a hot-air circular oven (GT-100 type: manufactured by Alp), the mixture was allowed to stand at 50 ° C. for 2 hours and dried to obtain the fast-dissolving tablet of the present invention.

Example 3 48 g of xylite and 12 g of mannitol were uniformly mixed in a mortar, and 2 ml of purified water was added and kneaded. Take 1 g of the kneaded material and use an autograph material testing machine (AG-5000 type: manufactured by Shimadzu Corp.) for a molding pressure of 100 to 700 kg and a compression speed of 20.
It was compression molded into a tablet diameter of 13 mmφ at mm / min. Then, in a hot-air circular oven (GT-100 type: manufactured by Alp), the mixture was allowed to stand at 50 ° C. for 2 hours and dried to obtain the fast dissolving tablet of the present invention. Example 4 60 g of mannitol was placed in a mortar, and 2 ml of purified water was added and kneaded. Take 1 g of the kneaded product and use an autograph material tester (AG-5000 type: manufactured by Shimadzu Corporation) to obtain a molding pressure of 100.
~ 700kg, compression speed was 20mm / min. Then, in a hot-air circular oven (GT-100 type: manufactured by Alp), the mixture was allowed to stand at 50 ° C. for 2 hours and dried to obtain the fast dissolving tablet of the present invention.

EXAMPLE 5 308 g of xylite, 77 g of mannitol, 12.5 g of diclofenac sodium and 2.5 g of polyvinylpyrrolidone were kneaded.
(KM-1.5 type: manufactured by Kikusui Seisakusho) and mixed for 10 minutes.
Thereafter, 12 ml of purified water was added and kneaded. This was sized with a feather mill equipped with a 12 mmφ screen (FM-1 type: Hosokawa Micron Co., Ltd.), and the granules were used with a tableting machine (Clean Press Collect 12HUK: Kikusui Seisakusho) equipped with a forced agitator With a molding pressure of 200 kg, a tablet diameter of 10.5 mm and a tablet of 800 mg was compression molded. Then, the molded tablets were placed in a hot air circulation oven (GT-100 type: manufactured by Alp) and dried at 50 ° C. for 3 hours to obtain the fast dissolving tablet of the present invention. Example 6 Polyvinylpyrrolidone (3 g), lactose (100 g) and oxybutynin hydrochloride (3 g) were put into a micro-type transparent mixer (W-8 type: manufactured by Tsutsui Rikagaku Kikai) and mixed for 8 minutes. 106g of this mixture and 394g of xylit were kneader (type KM-1.5: Kikusui Seisakusho)
And mixed for 10 minutes. Thereafter, 15 ml of purified water was added and kneaded. This was sized with a feather mill (FM-1 type: manufactured by Hosokawa Micron Co., Ltd.) equipped with a 12 mmφ screen, and the granules were tableted with a forced agitator (Clean Press Collect.
12HUK: manufactured by Kikusui Seisakusho, using a molding pressure of 150 kg and a tablet diameter
It was compression molded into a tablet of 9 mmφ and 500 mg. Then, the molded tablets were placed in a hot air circulation oven (GT-100 type: manufactured by Alp) and dried at 55 ° C. for 3 hours to obtain the fast dissolving tablet of the present invention.

Example 7 Arabic gum powder 2.5 g, mannitol 146 g, nifedipine 10
g was put into a micro-type transparent mixer (W-8 type: manufactured by Tsutsui Rikagaku Kikai Co., Ltd.) and mixed for 8 minutes. 158.5 g of this mixture and 341.5 g of xylite were put into a kneader (KM-1.5 type: manufactured by Kikusui Seisakusho) and mixed for 10 minutes. Then, 14 ml of purified water was added and kneaded. This was sized with a feather mill (FM-1 type: manufactured by Hosokawa Micron Co., Ltd.) equipped with a 12 mmφ screen, and the granulation pressure was 220 kg using a rotary tableting machine (RT-F-9 type: manufactured by Kikusui Seisakusho). Then, it was compression molded into a tablet diameter of 15 mmφ and a tablet of 1000 mg. Then, the molded tablets were placed in a hot air circulation oven (GT-100 type: manufactured by Alp) and dried at 55 ° C. for 3 hours to obtain the fast dissolving tablet of the present invention. Example 8 Polyvinylpyrrolidone 1.5 g, xylit 412.5 g, lactose 11
1 g and 125 g of cephalexin were put into a kneader (KM-1.5 type: manufactured by Kikusui Seisakusho) and mixed for 10 minutes. Then, 20 ml of purified water
And kneaded. This was sized with a feather mill (FM-1 type: Hosokawa Micron Co., Ltd.) equipped with a 12 mmφ screen, and the granules were rotary tableting machine (RT-F-9 type: Kikusui Seisakusho).
, And a compression pressure of 180 kg was used, and a tablet diameter of 15 mmφ and a tablet of 1300 mg were compression molded. Then, the molded tablets were placed in a hot air circulation oven (GT-100 type: manufactured by Alp) and dried at 55 ° C. for 3 hours to obtain the fast dissolving tablet of the present invention.

Comparative Example 1 300 g of xylite was sieved using a 32 mesh sieve, 1 g of this powder was taken, and a molding pressure of 50 to 1000 kg and a compression speed were measured by an autograph material testing machine (AG-5000 type: Shimadzu Corporation). 20 mm
/ Min, the tablet diameter was compressed to 13 mmφ to obtain tablets for comparison test. Comparative Example 2 300 g of mannitol was sieved using a 32 mesh sieve, 1 g of this powder was taken, and a molding pressure of 100 to 700 kg and a compression speed of 20 were measured with an autograph material testing machine (AG-5000 type: manufactured by Shimadzu Corporation).
mm / min, tablet diameter 13 mmφ was compression molded to give tablets for comparative test.

Test Example 1 The tensile strength and the dissolution time in the oral cavity of each of the fast dissolving tablet of the present invention of Example 1, the tablet of Comparative Example 1 and the undried tablet of Example 1 were measured. Tensile strength was measured using an autograph material testing machine (AG-5000 type: Shimadzu Corporation) equipped with a 100KGF rod cell, compression speed 20mm / min, full scale
10 to 20 KGF, the point at which the load reduction rate in one second decreased by 50% of the full scale was taken as the breaking point, and from this breaking point, the average of 5 tablets was calculated according to the following formula.

[0036]

[Equation 1]

As for the oral dissolution time, each tablet was contained in the mouth, left standing without chewing, and the time until the lump dissolved and disappeared was measured, and the average of 5 persons was taken. The result is shown in FIG.
As is clear from FIG. 1, the fast dissolving tablet of the present invention has a molding pressure of 50.
The tensile strength was 3 kg / cm ² or more at ˜300 kg, and the oral dissolution time was within 30 seconds, which was an excellent property as a fast dissolving tablet. On the other hand, the tensile strength of undried tablets and tablets produced by the dry compression method is 3 kg / cm ² at a molding pressure of 50 to 1000 kg.
In the following, it could not be put to practical use.

Test Example 2 The fast-dissolving tablet of the present invention of Example 2 was measured for tensile strength and oral dissolution time. The methods for measuring the tensile strength and the dissolution time in the oral cavity are the same as in Test Example 1. The result is shown in FIG. As is apparent from FIG. 2, the fast-dissolving tablet of the present invention has a tensile strength of 8 kg / cm ² or more within the range of the measured molding pressure, and has an excellent property as a fast-dissolving tablet such that the oral dissolution time is within 1 minute. Had. Test Example 3 Tensile strength and oral dissolution time of the rapidly dissolving tablet of the present invention of Example 3 were measured. The methods for measuring the tensile strength and the dissolution time in the oral cavity are the same as in Test Example 1. The result is shown in FIG. As is clear from FIG. 3, the fast-dissolving tablet of the present invention has a tensile strength of 7 kg / cm ² or more within the range of the measured molding pressure, and has an excellent property as a fast-dissolving tablet such that the oral dissolution time is 40 seconds or less. Had.

Test Example 4 Each of the fast-dissolving tablet of the present invention of Example 4, the tablet of Comparative Example 2 and the undried tablet of Example 4 was measured for tensile strength and oral dissolution time. The methods for measuring the tensile strength and the dissolution time in the oral cavity are the same as in Test Example 1. FIG. 4 shows the results. As is clear from FIG. 4, the fast-dissolving tablet of the present invention had much higher tensile strength than the undried tablet and the tablet prepared by the dry tableting method, and could be put to practical use. Test Example 5 The tensile strength, the oral dissolution time, the disintegration time, and the friability of the fast-dissolving tablets of the present invention of Examples 5 to 8 were determined. The tensile strength and the dissolution time in the oral cavity were determined in the same manner as in Test Example 1, and the disintegration time was determined by the method (water) specified in the Japanese Pharmacopoeia. The friability was measured for only one tablet using a friability meter. Table 1 shows the results.

[0040]

[Table 1]

As is clear from Table 1, the fast-dissolving tablet of the present invention has a tensile strength of 7 kg / cm ² or more and a dissolution time in the oral cavity.
It had excellent properties as a fast dissolving tablet within 30 seconds.

[Brief description of drawings]

FIG. 1 shows the relationship between the tensile strength, the oral dissolution time and the molding pressure measured for each of the fast dissolving tablet of the present invention of Example 1, the tablet of Comparative Example 1 and the undried tablet of Example 1. The horizontal axis represents molding pressure, the left vertical axis represents tensile strength (Kg / cm ² ), and the right vertical axis represents oral dissolution time (minutes). In addition, each symbol in the figure represents the following. -■-is the tensile strength of the fast-dissolving tablet of the present invention of Example 1. -□-is the oral dissolution time for the fast-dissolving tablet of the present invention of Example 1. -▲-indicates Example 1
Tensile strength when not dried. -●-is the tensile strength of the tablet of Comparative Example 1. FIG. 2 shows the relationship between the tensile strength and the oral dissolution time measured for the fast-dissolving tablet of the present invention of Example 2 and the molding pressure. The horizontal axis represents molding pressure, the left vertical axis represents tensile strength (Kg / cm ² ), and the right vertical axis represents oral dissolution time (minutes). In addition, each symbol in the figure represents the following. − ■
-Represents the tensile strength of the fast dissolving tablet of the present invention of Example 2. −
□ -is the oral dissolution time for the fast dissolving tablet of the present invention of Example 2. FIG. 3 shows the relationship between the tensile strength and the dissolution time in the oral cavity and the molding pressure measured for the fast-dissolving tablet of the present invention of Example 3. The horizontal axis is the molding pressure and the left vertical axis is the tensile strength (Kg / cm ² ).
And the vertical axis on the right represents the oral dissolution time (minutes). In addition, each symbol in the figure represents the following. -■-is the tensile strength for the fast dissolving tablet of the present invention of Example 3. -□-is the oral dissolution time for the fast dissolving tablet of the present invention of Example 3. FIG.
Shows the relationship between the tensile strength, the oral dissolution time and the molding pressure measured for each of the fast-dissolving tablet of the present invention of Example 4, the tablet of Comparative Example 2 and the undried tablet of Example 4. The horizontal axis represents molding pressure, the left vertical axis represents tensile strength (Kg / cm ² ), and the right vertical axis represents oral dissolution time (minutes). In addition, each symbol in the figure represents the following. -■-is the tensile strength for the fast dissolving tablet of the present invention of Example 4. -□-is the oral dissolution time for the fast dissolving tablet of the present invention of Example 4. − ▲ − indicates Example 4
Tensile strength when not dried. -●-is the tensile strength of the tablet of Comparative Example 2.

Claims (6)

[Claims] 1. A dissolution rate in water at the time of compression molding in the process of using a drug additive having a high dissolution rate in water as a main constituent of tablet constituents, and in the process of tableting a tablet containing a drug by a wet granulation method. An orally soluble fast-dissolving tablet characterized in that a kneaded product of a fast-moving pharmaceutical additive and a pharmaceutical is compressed before drying. 2. The rapidly dissolving tablet for oral dissolution according to claim 1, wherein the pharmaceutical additive having a high dissolution rate in water is sugar alcohol or sugar. 3. The sugar alcohol is xylit.
The fast dissolving tablet for oral dissolution described. 4. The compression molding pressure is 50 to 300 kg.
The fast dissolving tablet for oral dissolution described. 5. The orally-dissolving fast-dissolving tablet according to claim 1, wherein the pharmaceutical additive having a high dissolution rate in water is a mixture of xylit and lactose. 6. The orally dissolving fast-dissolving tablet according to claim 1, wherein the pharmaceutical additive having a high dissolution rate in water is a mixture of xylit and mannitol.