CN116898819B - 一种普瑞巴林缓释剂及其制备方法 - Google Patents
一种普瑞巴林缓释剂及其制备方法 Download PDFInfo
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- CN116898819B CN116898819B CN202310679003.1A CN202310679003A CN116898819B CN 116898819 B CN116898819 B CN 116898819B CN 202310679003 A CN202310679003 A CN 202310679003A CN 116898819 B CN116898819 B CN 116898819B
- Authority
- CN
- China
- Prior art keywords
- pregabalin
- sustained release
- eudragit
- coating
- release
- 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.)
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- AYXYPKUFHZROOJ-ZETCQYMHSA-N pregabalin Chemical compound CC(C)C[C@H](CN)CC(O)=O AYXYPKUFHZROOJ-ZETCQYMHSA-N 0.000 title claims abstract description 82
- 229960001233 pregabalin Drugs 0.000 title claims abstract description 72
- 238000013268 sustained release Methods 0.000 title claims abstract description 35
- 239000012730 sustained-release form Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 29
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims abstract description 23
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims abstract description 23
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims abstract description 18
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 claims abstract description 16
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 claims abstract description 16
- 239000001863 hydroxypropyl cellulose Substances 0.000 claims abstract description 15
- 229920003156 Eudragit® RL PO Polymers 0.000 claims abstract description 13
- 229920003160 Eudragit® RS PO Polymers 0.000 claims abstract description 13
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims description 31
- 238000000576 coating method Methods 0.000 claims description 31
- 239000000203 mixture Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 21
- 238000009472 formulation Methods 0.000 claims description 16
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 12
- 239000004480 active ingredient Substances 0.000 claims description 10
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 239000000314 lubricant Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 9
- 229920003134 Eudragit® polymer Polymers 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 235000019359 magnesium stearate Nutrition 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 5
- 229920000168 Microcrystalline cellulose Polymers 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 229940016286 microcrystalline cellulose Drugs 0.000 claims description 5
- 235000019813 microcrystalline cellulose Nutrition 0.000 claims description 5
- 239000008108 microcrystalline cellulose Substances 0.000 claims description 5
- 239000008213 purified water Substances 0.000 claims description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 230000032683 aging Effects 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
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- 230000004584 weight gain Effects 0.000 claims description 3
- 235000019786 weight gain Nutrition 0.000 claims description 3
- 239000000080 wetting agent Substances 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- MVPICKVDHDWCJQ-UHFFFAOYSA-N ethyl 3-pyrrolidin-1-ylpropanoate Chemical compound CCOC(=O)CCN1CCCC1 MVPICKVDHDWCJQ-UHFFFAOYSA-N 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-M hydrogensulfate Chemical compound OS([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 claims description 2
- 150000007529 inorganic bases Chemical class 0.000 claims description 2
- 159000000003 magnesium salts Chemical class 0.000 claims description 2
- 150000007522 mineralic acids Chemical class 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- 150000007524 organic acids Chemical class 0.000 claims description 2
- 235000005985 organic acids Nutrition 0.000 claims description 2
- 150000007530 organic bases Chemical class 0.000 claims description 2
- 230000036961 partial effect Effects 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 229940045902 sodium stearyl fumarate Drugs 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- 238000004090 dissolution Methods 0.000 abstract description 16
- 238000013329 compounding Methods 0.000 abstract description 3
- 239000000825 pharmaceutical preparation Substances 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 23
- 239000003826 tablet Substances 0.000 description 23
- 239000003814 drug Substances 0.000 description 16
- 229940079593 drug Drugs 0.000 description 14
- 239000003405 delayed action preparation Substances 0.000 description 6
- 229960003943 hypromellose Drugs 0.000 description 6
- 230000014759 maintenance of location Effects 0.000 description 6
- 239000002609 medium Substances 0.000 description 6
- 239000007939 sustained release tablet Substances 0.000 description 6
- 230000008961 swelling Effects 0.000 description 6
- 230000002496 gastric effect Effects 0.000 description 5
- 210000004369 blood Anatomy 0.000 description 4
- 239000008280 blood Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 210000002784 stomach Anatomy 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000013022 formulation composition Substances 0.000 description 3
- 230000036571 hydration Effects 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 208000004296 neuralgia Diseases 0.000 description 3
- -1 polyoxyethylene Polymers 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 229960001631 carbomer Drugs 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000012738 dissolution medium Substances 0.000 description 2
- BTCSSZJGUNDROE-UHFFFAOYSA-N gamma-aminobutyric acid Chemical compound NCCCC(O)=O BTCSSZJGUNDROE-UHFFFAOYSA-N 0.000 description 2
- 238000000338 in vitro Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 208000021722 neuropathic pain Diseases 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 102220310434 rs764401457 Human genes 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- OGNSCSPNOLGXSM-UHFFFAOYSA-N (+/-)-DABA Natural products NCCC(N)C(O)=O OGNSCSPNOLGXSM-UHFFFAOYSA-N 0.000 description 1
- SSONCJTVDRSLNK-UHFFFAOYSA-N 2-methylprop-2-enoic acid;hydrochloride Chemical compound Cl.CC(=C)C(O)=O SSONCJTVDRSLNK-UHFFFAOYSA-N 0.000 description 1
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 description 1
- 206010067484 Adverse reaction Diseases 0.000 description 1
- 108090000312 Calcium Channels Proteins 0.000 description 1
- 102000003922 Calcium Channels Human genes 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 208000032140 Sleepiness Diseases 0.000 description 1
- 206010041349 Somnolence Diseases 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 229940072056 alginate Drugs 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 230000000202 analgesic effect Effects 0.000 description 1
- 230000001773 anti-convulsant effect Effects 0.000 description 1
- 239000001961 anticonvulsive agent Substances 0.000 description 1
- 229960003965 antiepileptics Drugs 0.000 description 1
- 239000002249 anxiolytic agent Substances 0.000 description 1
- 230000000949 anxiolytic effect Effects 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 210000001815 ascending colon Anatomy 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 235000010980 cellulose Nutrition 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical class OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229960003692 gamma aminobutyric acid Drugs 0.000 description 1
- 230000030136 gastric emptying Effects 0.000 description 1
- 210000004051 gastric juice Anatomy 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 229940009697 lyrica Drugs 0.000 description 1
- 239000013563 matrix tablet Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 239000002858 neurotransmitter agent Substances 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 210000002381 plasma Anatomy 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 230000000291 postprandial effect Effects 0.000 description 1
- 229940069328 povidone Drugs 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 210000001187 pylorus Anatomy 0.000 description 1
- 239000000018 receptor agonist Substances 0.000 description 1
- 229940044601 receptor agonist Drugs 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 210000000813 small intestine Anatomy 0.000 description 1
- 235000015424 sodium Nutrition 0.000 description 1
- 239000012453 solvate Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000008673 vomiting Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
- A61K31/19—Carboxylic acids, e.g. valproic acid
- A61K31/195—Carboxylic acids, e.g. valproic acid having an amino group
- A61K31/197—Carboxylic acids, e.g. valproic acid having an amino group the amino and the carboxyl groups being attached to the same acyclic carbon chain, e.g. gamma-aminobutyric acid [GABA], beta-alanine, epsilon-aminocaproic acid or pantothenic acid
-
- 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
- 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
-
- 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
- A61K9/28—Dragees; Coated pills or tablets, e.g. with film or compression coating
- A61K9/2806—Coating materials
- A61K9/2833—Organic macromolecular compounds
- A61K9/286—Polysaccharides, e.g. gums; Cyclodextrin
- A61K9/2866—Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/02—Drugs for disorders of the nervous system for peripheral neuropathies
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Neurosurgery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Organic Chemistry (AREA)
- Medicinal Preparation (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202310679003.1A CN116898819B (zh) | 2023-06-09 | 2023-06-09 | 一种普瑞巴林缓释剂及其制备方法 |
Applications Claiming Priority (1)
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CN202310679003.1A CN116898819B (zh) | 2023-06-09 | 2023-06-09 | 一种普瑞巴林缓释剂及其制备方法 |
Publications (2)
Publication Number | Publication Date |
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CN116898819A CN116898819A (zh) | 2023-10-20 |
CN116898819B true CN116898819B (zh) | 2024-02-06 |
Family
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Family Applications (1)
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CN202310679003.1A Active CN116898819B (zh) | 2023-06-09 | 2023-06-09 | 一种普瑞巴林缓释剂及其制备方法 |
Country Status (1)
Country | Link |
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CN (1) | CN116898819B (zh) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101137352A (zh) * | 2005-01-21 | 2008-03-05 | 诺瓦制药公司 | 药物配制剂及其用法 |
CN104473910A (zh) * | 2014-11-26 | 2015-04-01 | 黑龙江省智诚医药科技有限公司 | 一种普瑞巴林缓释微丸及其制备方法 |
CN115581686A (zh) * | 2022-10-20 | 2023-01-10 | 成都恒瑞制药有限公司 | 一种普瑞巴林胶囊的制备方法和普瑞巴林胶囊 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3760190B1 (en) * | 2019-07-03 | 2023-05-24 | Alvogen, Inc. | Controlled-release tablets of pregabalin, method of making, and method of use thereof |
-
2023
- 2023-06-09 CN CN202310679003.1A patent/CN116898819B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101137352A (zh) * | 2005-01-21 | 2008-03-05 | 诺瓦制药公司 | 药物配制剂及其用法 |
CN104473910A (zh) * | 2014-11-26 | 2015-04-01 | 黑龙江省智诚医药科技有限公司 | 一种普瑞巴林缓释微丸及其制备方法 |
CN115581686A (zh) * | 2022-10-20 | 2023-01-10 | 成都恒瑞制药有限公司 | 一种普瑞巴林胶囊的制备方法和普瑞巴林胶囊 |
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Publication number | Publication date |
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CN116898819A (zh) | 2023-10-20 |
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Address after: 201815 building 16, No. 66, Huiyuan Road, Jiading District, Shanghai Patentee after: Shanghai Zezheng Pharmaceutical Technology Co.,Ltd. Country or region after: China Address before: 201815 building 16, No. 66, Huiyuan Road, Jiading District, Shanghai Patentee before: Shanghai Zezheng Biopharmaceutical Co.,Ltd. Country or region before: China Address after: 201815 building 16, No. 66, Huiyuan Road, Jiading District, Shanghai Patentee after: Shanghai Zezheng Biopharmaceutical Co.,Ltd. Country or region after: China Address before: 201815 building 16, No. 66, Huiyuan Road, Jiading District, Shanghai Patentee before: Zezheng (Shanghai) Biotechnology Co.,Ltd. Country or region before: China |
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