Goal of the invention
The objective of the invention is to problem at the prior art existence, provide a kind of Moschus slow, controlled release preparation, its efficacy stability, convenient drug administration, said preparation is with the speed of certain design, slow release of pharmacologically active part in the gastrointestinal tract of human body, can keep slow, the controlled release preparation of effective blood drug level after once-a-day dosage is taken to the patient for a long time, to guarantee normal work patient's every day and the safety of living.
The present invention also aims to provide that described Moschus is slow, the preparation method of controlled release preparation.
The effective ingredient that Moschus of the present invention is slow, controlled release preparation mainly comprises following parts by weight:
Moschus 20~200
Hydroxypropyl emthylcellulose and/or ethyl cellulose 10~300
Hydroxypropyl emthylcellulose (Hydroxyl Propyl Methyl Cellulose, HPMC) be white fiber shape or particulate powder, mixed cellulose ethers for non-corpuscular type, be dissolved in cold water, also dissolve in the mixture of second alcohol and water, its viscosity is 2% because of the degree of polymerization of molecule is different in concentration, under 20 ℃ of the temperature, viscosity is from being low to moderate 40~5600MPa.s.Hydroxypropyl emthylcellulose is to adopt the extensive stock that includes hydroxypropyl emthylcellulose.How elegant U.S.A as all size is.
Ethyl cellulose (Ethyl Cellulose; EC) be white runny granule or powder; water insoluble, gastro-intestinal Fluid, glycerol and propylene glycol; can be dissolved in the organic solvents such as ethanol, methanol, acetone, chloroform; in concentration is 5% (is solvent with 60% toluene and 40% (W/W) alcohol mixeding liquid); under 25 ℃ of the temperature, viscosity 7~100MPa.s.
Hydroxypropyl emthylcellulose and/or ethyl cellulose play slow releasing function.
Moschus of the present invention is slow, controlled release preparation can be made the full sheets of powder that comprises hydrogel matrix double-layer tablet, hydrophilic gel single-layer sheet or intra-gastric floating tablet, insoluble gel or the various Tabuleses of solid dispersion sheet, also comprises and makes the various dosage forms that granule, micropill etc. are made preparation more earlier.
In order to make various dosage forms, Moschus of the present invention is slow, controlled release preparation also comprises adjuvant, diluent for example, lubricant, wetting agent, binding agent, porogen or other adjuvants, the technology and the consumption that adopt present technique field those of ordinary skill to know, as adopt medical starch, lactose, dextrin, mannitol is as diluent, starch slurry, polyvinylpyrrolidone, sodium carboxymethyl cellulose, methylcellulose, water, water or alcoholic acid mixed solution are binding agent, lubricant is pharmaceutically useful adjuvant with lubrication, comprises magnesium stearate, Pulvis Talci, sodium lauryl sulphate, polyethylene glycols.Add the lower lipoid material of density,, improve the floating ability of intra-gastric floating tablet as glyceryl monostearate, stearyl alcohol, Cera Flava.
For controlling slow release speed better, Moschus of the present invention is slow, the controlled release preparation effective ingredient can comprise immediate release section and slow-released part, and wherein immediate release section is made up of artificial Moschus, hydroxypropyl emthylcellulose, lactose; Slow-released part is made up of artificial Moschus, hydroxypropyl emthylcellulose, hydroxypropyl emthylcellulose, starch.
Moschus of the present invention is slow, the preparation method of controlled release preparation tablet: will sieve behind Moschus, hydroxypropyl emthylcellulose and/or ethyl cellulose, the adjuvant pulverize separately, equivalent incremental method mix homogeneously, starch slurry is made soft material as binding agent, cross 20 mesh sieve system granules, be no more than 50 ℃ of aeration-dryings, 16 mesh sieve granulate, dried granule adds the lubricant mixing, and tabletting gets tablet.
Moschus of the present invention is slow, the preparation method of controlled release micro pill dosage form is: adjuvants such as Moschus and lactose are mixed and made into piller; According to dosage be divided into immediate release section and slow-released part, immediate release section is standby; Slow release group piller is used the alcoholic solution and the ethyl cellulose alcoholic solution of Moschus and ethyl cellulose respectively, adopt the bed spray packaging technique to make the piller of different coating thicknesses and different rate of releasing drug, as slow-released part, with immediate release section and slow-released part mixing according to a certain percentage, packing or dress people hard capsule can obtain ideal slow release or controlled release Moschus micropill, and its slow-released part rate of releasing drug is slow one-level and discharges.
The function assessment evaluation test shows, slow releasing preparation of the present invention is through acute toxicity test in mice and rat long term toxication, and indexs such as its behavioristics's change and pathology, physiology, biochemistry are not had obvious influence.Investigate (under the pharmacodynamic study item according to new Chinese medicine pharmacodynamics guide obstruction of qi in the chest and cardialgia disease) with slow releasing preparation of the present invention through pharmacodynamics, by the coronary artery test of blocking-up dog and to its cardiac function and hemodynamics experiment, the result show each dosage group all can significantly reduce the dog coronary artery ligation after ST-T raise degree, dwindle myocardial infarct size, can improve behind the heart infarction left chamber and shrink and diastolic function.Compare with the blank group, difference has statistical significance (P<0.01).This shows that this slow releasing preparation has protective effect to myocardial ischemia.Can be used for the prevention and the treatment of coronary heart disease.
The present invention has following advantage:
1, can keep Moschus blood drug level in vivo for a long time, reduce dose, solve the problem of Moschus need frequent drug administration.
2, regulate different specification and the consumptions of slow-release auxiliary material, the rate of release of may command medicine.
3, construction cycle weak point, production technology is reasonable in design, and production technology is suitable for suitability for industrialized production.
4, Chinese medicine is made modern slow, controlled release preparation, met the needs of Chinese medicine urgency, serious symptom, help the Chinese medicine modernization process.
The specific embodiment
Embodiment 1 preparation hydrogel matrix double-layer tablet
Prescription:
Immediate release section: artificial Moschus 30g
Starch 50g
Lactose 50g;
Slow-released part: artificial Moschus 70g
Hydroxypropyl emthylcellulose (K4M) 50g
Starch 50g
Make 1000 in tablet.
Its production technology is:
(1) immediate release section: the artificial Moschus, the lactose that take by weighing recipe quantity are crossed 80 mesh sieves (granularity is 25.4mm/80) respectively, equivalent incremental method mix homogeneously, 10% starch slurry is made binding agent, cross 20 mesh sieves (granularity is 25.4mm/20) system granule, 50 ℃ of aeration-dryings, 16 mesh sieves (granularity is 25.4mm/16) granulate adds the magnesium stearate mixing.
(2) slow-released part: hydroxypropyl emthylcellulose, lactose and artificial Moschus are adopted equivalent incremental method mix homogeneously, 95% ethanol system granule, cross 20 mesh sieves (granularity is 25.4mm/20) system granule, 50 ℃ of aeration-dryings, 16 mesh sieves (granularity is 25.4mm/16) granulate adds the magnesium stearate mixing.
(3) immediate release section and slow-released part are pressed into double-layer tablet in the prescription ratio.
(4) tablet is through being up to the standards, and packing promptly.
Preparation is made immediate release section and slow-released part respectively, and after medicine entered gastric juice, the rapid release part can make medicine reach effective blood drug concentration rapidly, and anginal symptom is controlled rapidly; Subsequently, hydroxypropyl emthylcellulose absorbs moisture, forms the hydrophilic gel slow release layer on the surface, stops artificial Moschus's rate of release effectively, can make medicine keep effective blood drug level, make the medicine interaction energy keep the long period (greater than 10 hours) for a long time.
As shown in Figure 1, prepared artificial Moschus's slow releasing tablet is compared with ordinary tablet, just discharges fully substantially when 2h as can be seen.And slow releasing tablet can be kept release for 10h.Can see significantly that from figure slow releasing preparation has slow release, keep long characteristics of blood drug level time.
Table 1 is above-mentioned three batches of Moschus slow releasing tablet average accumulated percentage release tables of data, as shown in table 1, the average accumulated percentage release of artificial Moschus's slow releasing preparation of prepared different batches different time in simulated gastric fluid, medicine just discharges 80%~90% of total amount in 12h as can be seen, has embodied preparation of the present invention and can slowly discharge the blood drug level of keeping the long period.
Table 1: three batches of Moschus slow releasing tablet average accumulated percentage release data (n=6) Lot Time (hr)
0.5 1 2 3.5 5 8 10 12T020729 30.47 42.13 53.47 64.15 72.16 82.34 87.21 92.34T020801 32.72 40.96 50.66 62.87 70.80 81.90 86.78 90.50T020805 28.43 39.41 47.79 58.76 68.33 79.80 84.67 88.63
Table 2 is Moschus conventional tablet average accumulated percentage release data, as shown in table 2, the average accumulated percentage release of prepared artificial Moschus's ordinary tablet different time in simulated gastric fluid just discharges 97.74% of total amount, the weak point of holding time in vivo as can be seen when 1.5h.
Table 2: Moschus conventional tablet average accumulated percentage release data (n=6) Lot Time (hr)
0.25 0.5 0.75 1 1.25 1.5T020728 48.35 69.31 80.12 86.76 95.12 97.74
Embodiment 2 preparation Moschus hydrogel matrix special-shaped tablets
Prescription: artificial Moschus 100g
Hydroxypropyl emthylcellulose (K4M) 50g
Lactose 120g
Starch 80g
Make 1000 altogether
Its production technology is: cross 80 mesh sieves (granularity is 25.4mm/80) after taking by weighing the artificial Moschus, lactose, starch pulverize separately of recipe quantity, adopt equivalent incremental method mix homogeneously, 95% ethanol is wetting agent system soft material, cross 20 mesh sieves (granularity is 25.4mm/20) system granule, 50 ℃ of oven dry in 2 hours, 16 orders (granularity is 25.4mm/16) sieve granulate, add the magnesium stearate mixing, with special-shaped tablet machine tabletting, tablet is through being up to the standards, and packing promptly.
These routine characteristics are with the hydroxypropyl emthylcellulose to be that the water-setting colloidality matrix tablet that substrate makes is the water erodible matrix, in medium, at first form gel at moistened surface, surface drug discharges, then gel layer thickens and makes drug release slow, show drug release rate phenomenon first quick and back slow, in certain scope of medication, can not need to add in addition the rapid release part.According to Ficks diffusion formula as can be known diffusion velocity amass proportional with tablet surface, directly influence the release of medicine, so adopt the method that increases tablet surface long-pending (special-shaped tablets) to promote initial release, also can not make medicine reach effective blood drug concentration rapidly thereby do not add the rapid release part.Subsequently, the release of drug slow can be kept effective blood drug level for a long time, makes the medicine interaction energy keep the long period (greater than 10 hours).
The insoluble gel skeleton solid dispersion sheet of embodiment 3 preparations
Prescription: artificial Moschus: 100g
Ethyl cellulose: 200g
Hydroxypropyl emthylcellulose: 20g
Starch: 20g
Polyethylene Glycol: 10g
Make 1000 altogether
Its production technology is: (1) crosses 80 mesh sieves (granularity is 25.4mm/80) after taking by weighing recipe quantity hydroxypropyl emthylcellulose, starch pulverize separately, equivalent incremental method mix homogeneously,
(2) artificial Moschus and the ethyl cellulose that takes by weighing recipe quantity is dissolved in 50ml 95% ethanol, a few hours are left standstill in airtight shading, add in the mixed accessories in (1), the system soft material, cross 20 mesh sieves (granularity is 25.4mm/20) systems granule, 50 ℃ of dryings 2 hours, 16 mesh sieves (granularity is 25.4mm/16) granulate is crossed in dry back, add the magnesium stearate mix homogeneously, tabletting.
(3) tablet is through being up to the standards, and packing promptly.
These routine characteristics are to adopt solid dispersion technology, and medicine and ethyl cellulose are dissolved or dispersed in the ethanol, add water-soluble substanceses such as hydroxypropyl cellulose, polyvinylpyrrolidone, Polyethylene Glycol as porogen, regulate drug releasing rate.Ethyl cellulose is insoluble framework material, and drug releasing rate is decided by diffusion velocity, and is irrelevant with the dissolution velocity of medicine.Medicine is the saturated solution state in skeleton, discharge from insoluble framework material, reaches slow release medication purpose.
The full sheets of powder of the embodiment 4 insoluble skeletons of preparation
Adopt the present embodiment 4 tablet formulation content of industrial pharmacy existent method preparation as follows:
Prescription: artificial Moschus: 100g
Ethyl cellulose: 80g
Hydroxypropyl emthylcellulose: 20g
Starch: 120g
Microcrystalline Cellulose: 20g
Make 1000 altogether
These routine characteristics adopt direct compression of full-powder, and ethyl cellulose is insoluble framework material, and drug releasing rate is decided by diffusion velocity, and are irrelevant with the dissolution velocity of medicine.Medicine is the saturated solution state in skeleton, discharge from insoluble framework material, reaches slow release medication purpose.
Embodiment 5 preparation Moschus floating in stomach sheets
Prescription: artificial Moschus: 100g
Hydroxypropyl emthylcellulose (K15M): 35g
Hydroxypropyl emthylcellulose (K100M): 65g
Lactose: 120g
Cera Flava: 5g
Magnesium stearate: 5g
Make 1000 altogether.
Its production technology is: (1) takes by weighing the artificial Moschus, hydroxypropyl emthylcellulose, lactose of recipe quantity etc. and pulverizes the back respectively and cross 80 mesh sieves (granularity is 25.4/80), equivalent incremental method mix homogeneously.
(2) with powder in (1) with 95% ethanol system soft material, cross 20 mesh sieves (granularity is 25.4mm/20) system granule, 50 ℃ of dryings 2 hours, dry back 16 mesh sieves (granularity is 25.4mm/16) granulate, adding magnesium stearate mix homogeneously, tabletting.
The preparation that this example is made is the floating in stomach sheet, its characteristics be hydroxypropyl emthylcellulose suction back expand and float on gastric content above, discharge medicine gradually, materials of low density such as adding Cera Flava have improved floating ability, add the lactose soluble component, help release, the rate of release of scalable preparation.Can reach 10~12 hours at gastric transit time, and have the feature of skeleton release, thereby further improve bioavailability of medicament.
Embodiment 6 preparation coating type slow-release micro-pill
Prescription: artificial Moschus: 100g
Hydroxypropyl emthylcellulose: 30g
Ethyl cellulose: 200g
Its production technology is: (1) immediate release section: the artificial Moschus 30g, the lactose 30g that take by weighing recipe quantity are mixed and made into piller, according to dosage are divided into immediate release section and slow-released part, and immediate release section is standby.
(2) slow-released part: take by weighing artificial Moschus 70g, the ethyl cellulose 200g of recipe quantity, with being wrapped in piller in the heart through the fluid bed packaging technique behind the dissolve with ethanol, the control fluidized-bed temperature is between 50 ℃~70 ℃.Make the piller of different coating thicknesses and different rate of releasing drug, its slow-released part drug release rate is slow one-level and discharges, and can obtain ideal slow release or controlled release Moschus micropill.
(3) with (1) and (2) part gained micropill mix homogeneously, the tabletting or the hard capsule of packing into.
Described K4M is superfine (controlled release is used) powdery hydroxypropyl emthylcellulose, and viscosity is 4,000 centipoises; K15M is superfine (controlled release is used) powdery hydroxypropyl emthylcellulose, and viscosity is 15,000 centipoises; K100M is superfine (controlled release is used) powdery hydroxypropyl emthylcellulose, and viscosity is 100,000 centipoises.