CN116370430A - Dapagliflozin and metformin sustained release tablet and preparation method thereof - Google Patents

Dapagliflozin and metformin sustained release tablet and preparation method thereof Download PDF

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CN116370430A
CN116370430A CN202310529276.8A CN202310529276A CN116370430A CN 116370430 A CN116370430 A CN 116370430A CN 202310529276 A CN202310529276 A CN 202310529276A CN 116370430 A CN116370430 A CN 116370430A
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dapagliflozin
metformin
lubricant
sustained
release
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沈载宽
郑林海
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Ponuo Tianjin Innovative Medicine Research Co ltd
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Ponuo Tianjin Innovative Medicine Research Co ltd
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/28Dragees; Coated pills or tablets, e.g. with film or compression coating
    • A61K9/2806Coating materials
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
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    • A61K31/335Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
    • A61K31/35Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom
    • A61K31/351Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom not condensed with another ring
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/2004Excipients; Inactive ingredients
    • A61K9/2013Organic compounds, e.g. phospholipids, fats
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
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    • A61K9/2018Sugars, or sugar alcohols, e.g. lactose, mannitol; Derivatives thereof, e.g. polysorbates
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61K9/2004Excipients; Inactive ingredients
    • A61K9/2022Organic macromolecular compounds
    • A61K9/2027Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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    • A61K9/2004Excipients; Inactive ingredients
    • A61K9/2022Organic macromolecular compounds
    • A61K9/205Polysaccharides, e.g. alginate, gums; Cyclodextrin
    • A61K9/2054Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61K9/20Pills, tablets, discs, rods
    • A61K9/2072Pills, 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
    • A61K9/2077Tablets comprising drug-containing microparticles in a substantial amount of supporting matrix; Multiparticulate tablets
    • A61K9/2081Tablets comprising drug-containing microparticles in a substantial amount of supporting matrix; Multiparticulate tablets with microcapsules or coated microparticles according to A61K9/50
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    • A61K9/2095Tabletting processes; Dosage units made by direct compression of powders or specially processed granules, by eliminating solvents, by melt-extrusion, by injection molding, by 3D printing
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00Drugs for disorders of the metabolism
    • A61P3/08Drugs for disorders of the metabolism for glucose homeostasis
    • A61P3/10Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics

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Abstract

The invention provides a dapagliflozin and metformin sustained release tablet which sequentially comprises a metformin hydrochloride sustained release pellet core, an isolation layer, a dapagliflozin layer and a film coating layer from inside to outside; the metformin hydrochloride sustained-release pellet core comprises metformin hydrochloride, an adhesive I, a sustained-release material, a lubricant I and a filler; the dapagliflozin layer comprises dapagliflozin propylene glycol monohydrate, a binder II and a lubricant II. The invention provides a dapagliflozin and metformin sustained release tablet, which is prepared by combining dapagliflozin and metformin and a controlled release pellet technology. The preparation process is simple, the product stability is good, and the method is easy to popularize and use.

Description

Dapagliflozin and metformin sustained release tablet and preparation method thereof
Technical Field
The invention belongs to the field of pharmaceutical preparations, and in particular relates to dapagliflozin and metformin sustained-release tablets and a preparation method thereof.
Background
The epidemiological investigation result of diabetes in Chinese population shows that the prevalence rate of adult diabetes is 12.8%, and the pre-diabetes population is as high as 35.2%, the diabetes can be divided into type I and type II according to the pathogenesis, and the type II accounts for more than 80% of the total number of diabetics. Dapagliflozin is a column-like medicament acting on SGLT-2 target sites. Through the combination with the SGLT-2 of the kidney tubule, the glucose is inhibited from exerting glucose steady-state regulation effect, so that glucose cannot be reabsorbed back into blood by the kidney tubule, and finally, along with the urine discharged out of the body, the blood sugar of a human body is also reduced. Metformin can increase insulin sensitivity, so that the human body can use less insulin to achieve the effect of reducing blood sugar. The traditional effective treatment scheme is dapagliflozin combined with metformin, has a synergistic effect, can effectively regulate blood sugar of patients, and can also reduce adverse reactions.
Patent CN 106924208A discloses and a compound dapagliflozin metformin sustained release tablet, comprising: a tablet core containing metformin hydrochloride, a dapagliflozin quick-release layer and a film coating layer. The invention also provides a preparation method of the compound dapagliflozin and metformin sustained-release tablet, which comprises 1) preparing a tablet core containing metformin; 2) Packaging the dapagliflozin quick release layer and 3) packaging the film coating layer. The preparation process flow of the method is complex, the dapagliflozin quick-release layer is directly coated on the tablet core containing the metformin hydrochloride, and 2 components are in close contact, so that the product is easy to be unstable, and meanwhile, the method has high requirements on the production process, and the quality of the product is difficult to ensure under the advance of high production cost.
The controlled release pellet is a pellet prepared by mixing the drug and the retarder or a small pellet coated with a controlled release coating film on the basis of a common pellet core, and has the characteristics of attractive appearance, good fluidity, wide drug carrying range, stable drug release, small local irritation and the like. The invention combines the controlled release pellet technology with dapagliflozin and metformin, and develops a novel dapagliflozin-metformin sustained-release tablet.
Disclosure of Invention
The invention aims to provide a dapagliflozin metformin sustained-release tablet which is simple in preparation process, high in uniformity and slow in release.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a dapagliflozin and metformin sustained release tablet which sequentially comprises a metformin hydrochloride sustained release pellet core, an isolation layer, a dapagliflozin layer and a film coating layer from inside to outside; wherein, the raw materials for preparing the metformin hydrochloride sustained-release pellet core comprise metformin hydrochloride, an adhesive I, a sustained-release material, a lubricant I and a filler; the dapagliflozin layer is prepared from dapagliflozin propylene glycol monohydrate, an adhesive II and a lubricant II.
In a preferred embodiment, the raw materials for preparing the metformin hydrochloride sustained-release pellet core comprise 50-75% of metformin hydrochloride, 4-26% of a binder I, 12-30% of a sustained-release material, 1-10% of a lubricant I and 1-15% of a filler in percentage by mass; the dapagliflozin layer comprises 2-15% of dapagliflozin propylene glycol monohydrate, 70-95% of adhesive II and 1-15% of lubricant II.
Preferably, the raw materials for preparing the metformin hydrochloride sustained-release pellet core comprise 55-60% of metformin hydrochloride, 7-21% of adhesive I, 20-26% of sustained-release material, 1-5% of lubricant I and 5-10% of filler in percentage by mass; the dapagliflozin layer is prepared from 2-10% of dapagliflozin propylene glycol monohydrate, 85-90% of adhesive II and 5-10% of lubricant II.
In order to improve the slow release performance, uniformity and stability of the dapagliflozin and metformin hydrochloride slow release tablet, it is further preferable that the raw materials for preparing the metformin hydrochloride slow release pellet core comprise, by mass, 51% of metformin hydrochloride, 15% of an adhesive, 23% of a slow release material, 3% of a lubricant and 8% of a filler; the dapagliflozin layer is prepared from 6% of dapagliflozin propylene glycol monohydrate, 86% of an adhesive and 8% of a lubricant. The metformin hydrochloride is purchased from Albumin PHR1084.
In a preferred embodiment, the binder i is selected from one or more of hydroxypropyl methylcellulose, hydroxypropyl cellulose, crospovidone, sodium carboxymethylcellulose, ethylcellulose, polyethylene oxide, acrylic resins; the lubricant I is one or more selected from magnesium stearate, calcium stearate, sodium stearate fumarate, stearic acid and talcum powder; the filler is selected from one or more of xylitol, mannitol, lactose, microcrystalline cellulose and pregelatinized starch; the slow release material is one or more selected from hydroxypropyl cellulose, hypromellose, ethyl cellulose and sodium alginate.
Preferably, the binder i is selected from polyethylene oxides; the lubricant I is selected from magnesium stearate and calcium stearate, and the weight ratio is 1:3 to 12. Further preferably, the lubricant I is selected from magnesium stearate and calcium stearate, and the weight ratio is 1:6. further, in order to improve the slow release effect, the polyethylene oxide has a viscosity average molecular weight of 1x10 5 200-500ppm of dibutyl hydroxyl toluene stabilizer, the melting point is 87-140 ℃, the density is 0.93g/mL at 25 ℃, the softening point is 65-67 ℃, and the embrittlement point is-50 ℃. Purchased from siella chemical technology (shandong) limited C21595-25g.
The adhesive I of the metformin hydrochloride sustained-release pellet core is selected from polyethylene oxide, the inventor discovers that the sustained-release performance can be obviously improved by using polyethylene oxide as the adhesive, and simultaneously discovers that the molecular weight of the polyethylene oxide has important significance on the release rate and biocompatibility of the drug, and the different molecular weights of the polyethylene oxide have different effects in the metformin hydrochloride sustained-release pellet core. It has been found that when the system according to the invention uses a viscosity average molecular weight of 1X10 5 The polyethylene oxide slow release effect is optimal. Because the molecular weight is too high, the solubility is too low, the uniformity of the sustained-release tablet is poor, and the sustained-release effect is poor because the molecular weight is too low. The dibutyl hydroxy toluene (BHT) stabilizer in the polyethylene oxide selected in the embodiment of the invention inhibits corrosionThe stability of the agent is improved.
For improved sustained release effect and uniformity of the corrosion inhibitor, preferably, the filler is selected from xylitol, mannitol and lactose. Further preferably, the lactose content of the filler is not more than 55wt% of the filler. Further preferably, the xylitol is 1,2,3,4, 5-pentitol available from Zhejiang Huakang pharmaceutical industry Co., ltd. The mannitol is purchased from zemoeizemoeizemoeizemoeizemoeizemoeizemoeizemoeizemoeizemoeizeh 14030 and the lactose is purchased from zemoeizemoeizemoeizemoeizemoeizemoeizemoeizemoeizemoeizeh 11074. Further preferred is a weight ratio of xylitol, mannitol and lactose of 4:2:1.
The inventors found that the overall effect of the filler being all lactose corrosion inhibitor is not ideal. After three kinds of xylitol, mannitol and lactose are compounded, the performance of the corrosion inhibitor can be improved by synergistic effect, and the effect of the lactose in the filler is optimal, wherein the weight percentage of the lactose in the filler is not more than 55%. The inventors hypothesize that the pore-forming effect of the different types of fillers is different, and after the filler is combined with the rest of components, the slow release property of the pellet core can be influenced, and meanwhile, the uniformity of the corrosion inhibitor can be influenced.
The slow release material is one or more selected from hydroxypropyl methylcellulose K4M, hydroxypropyl methylcellulose K15M, hydroxypropyl methylcellulose K100M and hydroxypropyl methylcellulose K100 LV. In order to improve the slow release effect of the metformin hydrochloride, the slow release material is further preferably selected from hydroxypropyl methylcellulose K15M, methoxy value of 19-30%, hydroxypropyl value of 4-12%, viscosity (22 ℃, 2%) of 5-200000 Pa.s, and gel temperature (0.2%) of 50-90 ℃ from the pharmaceutical auxiliary material company of An Jin Hunan, inc.
The inventor discovers that the performance parameters of the hydroxypropyl methylcellulose K15M have great influence on the slow release effect, and the slow release effect is greatly improved by selecting and compounding the proper hydroxypropyl methylcellulose K15M with the rest components. The hydroxypropyl methylcellulose K15M has performance parameters and structural characteristics, is reasonably matched with the dosage, increases the strength of gel formed after meeting water, slows down the corrosion rate and realizes excellent slow release effect.
In a preferred embodiment, the isolating layer is 'Opadry' series gastric-soluble coating powder, accounting for 8-15% of the weight of the metformin hydrochloride sustained-release pellets. Preferably, the isolating layer is 'Opadry' series gastric-soluble coating powder, and accounts for 13% of the weight of the metformin hydrochloride sustained-release pellets. The "Opadry" series of gastric-soluble coating powders were purchased from Shanghai Carlekang.
In a preferred embodiment, the binder ii is selected from one or more of hydroxypropyl methylcellulose K4M, hydroxypropyl methylcellulose K15M, hydroxypropyl methylcellulose K100M, and hydroxypropyl methylcellulose K100 LV; the lubricant II is selected from magnesium stearate and/or calcium stearate.
In order to improve the uniformity and dissolution rate of dapagliflozin, preferably, the binder II is selected from hydroxypropyl methylcellulose K100M, which is purchased from the pharmaceutical excipients company of West An Jin Hunan; the lubricant is selected from magnesium stearate and calcium stearate, and the weight ratio is 1-5:1. Further preferred, the lubricant is selected from magnesium stearate and calcium stearate in a weight ratio of 3:1.
The invention also provides a preparation method of the dapagliflozin metformin sustained-release tablet, which comprises the following steps:
(1) Preparing a metformin hydrochloride sustained-release pellet core: uniformly mixing metformin hydrochloride, an adhesive I, a slow-release material, a lubricant I and a filler, adding water to prepare a soft material, using an extrusion spheronization machine to prepare pellets, and drying to obtain a metformin hydrochloride slow-release pellet core;
(2) And (3) a package isolation layer: preparing coating powder into coating liquid, and coating the metformin hydrochloride sustained-release pellet cores;
(3) Bao Dage column clean layer: dissolving gliclazide propylene glycol monohydrate, an adhesive II and a lubricant II with water, and then wrapping the dissolved gliclazide propylene glycol monohydrate, the adhesive II and the lubricant II on an isolating layer;
(4) Coating a film coating layer: preparing gastric-soluble film coating and coating the film coating.
In a preferred embodiment, the dapagliflozin layer weight gain is 1-10wt% of the total weight of the sustained release tablet, and the film coating layer weight gain is 0.5-7wt% of the total weight of the sustained release tablet.
Compared with the prior art, the invention has the advantages that: the invention provides a dapagliflozin and metformin sustained release tablet, which is prepared by combining dapagliflozin and metformin and combining a controlled release pellet technology. The preparation process is simple, the product stability is good, and the method is easy to popularize and use.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The embodiment provides a dapagliflozin metformin sustained release tablet, which sequentially comprises from inside to outside: the metformin hydrochloride sustained-release pellet comprises a pellet core, an isolation layer, a dapagliflozin layer and a film coating layer; the metformin hydrochloride sustained-release pellet core comprises metformin hydrochloride, an adhesive I, a sustained-release material, a lubricant I and a filler; the dapagliflozin layer comprises dapagliflozin propylene glycol monohydrate, a binder II and a lubricant II.
The metformin hydrochloride sustained-release pellet core comprises 51% of metformin hydrochloride, 15% of an adhesive I, 23% of a sustained-release material, 3% of a lubricant and 8% of a filler; the dapagliflozin layer comprises 6% of dapagliflozin propylene glycol monohydrate, 86% of a binder II and 8% of a lubricant II. The adhesive I is selected from polyethylene oxide; the lubricant I is selected from magnesium stearate and calcium stearate, and the weight ratio is 1:6. the filler is selected from xylitol, mannitol and lactose. The weight ratio of xylitol, mannitol and lactose was 4:2:1. The slow release material is selected from hydroxypropyl methylcellulose K15M.
The isolation layer is opadry II type gastric-soluble coating powder, and accounts for 13% of the weight of the metformin hydrochloride sustained-release pellets.
The adhesive II is selected from hydroxypropyl methylcellulose K100M; the lubricant is selected from magnesium stearate and calcium stearate, and the weight ratio is 3:1.
The invention also provides a preparation method of the dapagliflozin metformin sustained-release tablet, which comprises the following steps:
(1) Preparing a metformin hydrochloride sustained-release pellet core: uniformly mixing metformin hydrochloride, an adhesive I, a slow-release material, a lubricant I and a filler, adding a proper amount of water to prepare a soft material, using an extrusion spheronization machine to prepare pellets, and drying at 65 ℃ to obtain a metformin hydrochloride slow-release pellet core;
(2) And (3) a package isolation layer: adding water into the coating powder to prepare coating liquid, and coating the metformin hydrochloride sustained-release pellet cores; the isolating layer accounts for 13% of the metformin hydrochloride sustained-release pellets in weight percent;
(3) Bao Dage column clean layer: dissolving gliclazide propylene glycol monohydrate, an adhesive II and a lubricant II with water, and then wrapping the dissolved gliclazide propylene glycol monohydrate, the adhesive II and the lubricant II on an isolating layer; the weight gain of the dapagliflozin layer is 5 percent of the total weight of the sustained release tablet,
(4) Coating a film coating layer: preparing gastric-soluble film coating and coating the film coating. The weight of the film coating layer is 2wt% of the total weight of the sustained release tablet.
Example 2
This embodiment differs from embodiment 1 in that: the binder I is selected from the group consisting of crospovidone available from Merck 21902.
Example 3
This embodiment differs from embodiment 1 in that: the slow release material is selected from ethylcellulose, available from merck 200689.
Example 4
This embodiment differs from embodiment 1 in that: the lubricant I is selected from magnesium stearate and calcium stearate, and the weight ratio is 1:1.
example 5
This embodiment differs from embodiment 1 in that: the filler is selected from xylitol, mannitol and lactose, and the weight ratio is 1:1:8.
Example 6
This embodiment differs from embodiment 1 in that: the adhesive II is selected from crosslinked povidone, and the lubricant II is selected from talcum powder.
Performance testing
(1) The release degree measuring method of the metformin hydrochloride sustained-release pellets prepared in examples 1 to 5 in 1000mL of phosphate buffer solution with pH of 6.8 and carried in Chinese pharmacopoeia comprises the steps of basket method, rotating at 100rpm, and measuring release amounts in 1h, 6h and 12h respectively. See table 1.
TABLE 1 metformin hydrochloride sustained release pellet core Performance test results
Project 1h 6h 12h
Example 1 23.1% 63.8% 90.6%
Example 2 24.4% 71.2% 92.5%
Example 3 24.7% 72.3% 91.1%
Example 4 25.7% 76.8% 96.3%
Example 5 27.5% 77.1% 95.3%
(2) The release rate of dapagliflozin layers prepared in example 1 and example 6 in 1000mL of phosphate buffer solution with pH of 6.8 was measured by basket method at 100rpm in Chinese pharmacopoeia, and release rates at 5min and 30min were measured respectively. See Table 2
TABLE 2 dapagliflozin layer Performance test results
Project 5min 30min
Example 1 44% 95%
Example 6 29% 84%
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

Claims (10)

1. The dapagliflozin and metformin sustained release tablet is characterized by sequentially comprising a metformin hydrochloride sustained release pellet core, an isolation layer, a dapagliflozin layer and a film coating layer from inside to outside; wherein, the raw materials for preparing the metformin hydrochloride sustained-release pellet core comprise metformin hydrochloride, an adhesive I, a sustained-release material, a lubricant I and a filler; the dapagliflozin layer is prepared from dapagliflozin propylene glycol monohydrate, an adhesive II and a lubricant II.
2. The dapagliflozin and metformin sustained release tablet according to claim 1, wherein the raw materials for preparing the metformin hydrochloride sustained release pellet core comprise 50-75% of metformin hydrochloride, 4-26% of adhesive I, 12-30% of sustained release material, 1-10% of lubricant I and 1-15% of filling agent according to mass percent; the dapagliflozin layer is prepared from 2-15% of dapagliflozin propylene glycol monohydrate, 70-95% of adhesive II and 1-15% of lubricant II.
3. The dapagliflozin and metformin sustained release tablet according to claim 2, wherein the raw materials for preparing the metformin hydrochloride sustained release pellet core comprise, by mass, 55-60% of metformin hydrochloride, 7-21% of an adhesive, 20-26% of a sustained release material, 1-5% of a lubricant I and 5-10% of a filler; the dapagliflozin layer is prepared from 2-10% of dapagliflozin propylene glycol monohydrate, 85-90% of adhesive II and 5-10% of lubricant II.
4. The dapagliflozin and metformin sustained release tablet according to claim 1, wherein the binder I is one or more selected from hydroxypropyl methylcellulose, hydroxypropyl cellulose, crospovidone, sodium carboxymethyl cellulose, ethyl cellulose, polyethylene oxide and acrylic resin; the lubricant I is one or more selected from magnesium stearate, calcium stearate, sodium stearate fumarate, stearic acid and talcum powder; the filler is selected from one or more of xylitol, mannitol, lactose, microcrystalline cellulose and pregelatinized starch; the slow release material is one or more selected from hydroxypropyl cellulose, hypromellose, ethyl cellulose and sodium alginate.
5. A dapagliflozin metformin extended release tablet in accordance with claim 4 wherein said binder i is selected from polyethylene oxide; the lubricant I is selected from magnesium stearate and calcium stearate, and the weight ratio of the magnesium stearate to the calcium stearate is 1:3 to 12.
6. A dapagliflozin metformin extended release tablet according to claim 4 wherein said filler is selected from xylitol, mannitol and lactose and said extended release material is selected from one or more of hydroxypropyl methylcellulose K4M, hydroxypropyl methylcellulose K15M, hydroxypropyl methylcellulose K100M, and hydroxypropyl methylcellulose K100 LV.
7. A dapagliflozin metformin extended release tablet according to claim 6 wherein the lactose content of said filler is no more than 55% by weight of the filler.
8. The dapagliflozin and metformin sustained-release tablet according to claim 1, wherein the isolation layer is 'Opadry' series gastric-soluble coating powder, and accounts for 8-15% of the weight of the metformin hydrochloride sustained-release pellet.
9. A dapagliflozin metformin sustained release tablet according to claim 1, wherein said binder ii is selected from one or more of hydroxypropyl methylcellulose K4M, hydroxypropyl methylcellulose K15M, hydroxypropyl methylcellulose K100M, and hydroxypropyl methylcellulose K100 LV; the lubricant II is selected from magnesium stearate and/or calcium stearate.
10. A method for preparing a dapagliflozin metformin sustained-release tablet according to any one of claims 1 to 9, which is characterized by comprising the following steps:
(1) Preparing a metformin hydrochloride sustained-release pellet core: uniformly mixing metformin hydrochloride, an adhesive I, a slow-release material, a lubricant I and a filler, adding water to prepare a soft material, using an extrusion spheronization machine to prepare pellets, and drying to obtain a metformin hydrochloride slow-release pellet core;
(2) And (3) a package isolation layer: preparing coating powder into coating liquid, and coating the metformin hydrochloride sustained-release pellet cores;
(3) Bao Dage column clean layer: dissolving gliclazide propylene glycol monohydrate, an adhesive II and a lubricant II with water, and then wrapping the dissolved gliclazide propylene glycol monohydrate, the adhesive II and the lubricant II on an isolating layer;
(4) Film coating: preparing gastric-soluble film coating and wrapping the film coating.
CN202310529276.8A 2023-05-11 2023-05-11 Dapagliflozin and metformin sustained release tablet and preparation method thereof Pending CN116370430A (en)

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CN117442580A (en) * 2023-12-21 2024-01-26 泊诺(天津)创新医药研究有限公司 High-bioavailability sodium mycophenolate enteric-coated tablet and preparation method thereof

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CN113398097A (en) * 2021-07-14 2021-09-17 南京康川济医药科技有限公司 Dapagliflozin metformin sustained release preparation and preparation method thereof
CN116473934A (en) * 2023-05-15 2023-07-25 山东诺明康药物研究院有限公司 Dapagliflozin and metformin sustained release tablet as well as preparation method and application thereof

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CN106924208A (en) * 2015-12-30 2017-07-07 深圳翰宇药业股份有限公司 A kind of compound Dapagliflozin Metformin Extended-release Tablets and preparation method thereof
CN113398097A (en) * 2021-07-14 2021-09-17 南京康川济医药科技有限公司 Dapagliflozin metformin sustained release preparation and preparation method thereof
CN116473934A (en) * 2023-05-15 2023-07-25 山东诺明康药物研究院有限公司 Dapagliflozin and metformin sustained release tablet as well as preparation method and application thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117442580A (en) * 2023-12-21 2024-01-26 泊诺(天津)创新医药研究有限公司 High-bioavailability sodium mycophenolate enteric-coated tablet and preparation method thereof
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