BG50712A3 - Метод за получаване на покритие на фармацевтичен препарат с контролирано освобождаване на активното вещество - Google Patents

Метод за получаване на покритие на фармацевтичен препарат с контролирано освобождаване на активното вещество

Info

Publication number
BG50712A3
BG50712A3 BG087875A BG8787589A BG50712A3 BG 50712 A3 BG50712 A3 BG 50712A3 BG 087875 A BG087875 A BG 087875A BG 8787589 A BG8787589 A BG 8787589A BG 50712 A3 BG50712 A3 BG 50712A3
Authority
BG
Bulgaria
Prior art keywords
coating
substance
active substance
hydrophobic
acetate
Prior art date
Application number
BG087875A
Other languages
English (en)
Inventor
Masayoshi Samejima
Kuzuo Noda
Yoshiyuki Hirakawa
Hiroyuki Yoshino
Original Assignee
Tanabe Seiyaku Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=13722933&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BG50712(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Tanabe Seiyaku Co., Ltd. filed Critical Tanabe Seiyaku Co., Ltd.
Publication of BG50712A3 publication Critical patent/BG50712A3/bg

Links

Classifications

    • 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
    • A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • 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
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5073—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals having two or more different coatings optionally including drug-containing subcoatings
    • A61K9/5078—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals having two or more different coatings optionally including drug-containing subcoatings with drug-free core
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Epidemiology (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Medicinal Preparation (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

Методът намира приложение във фармацевтичната промишленост. По него се получава покритие с отлично свойство за освобождаване на активното вещество, като същевременно се запазват предимствата на покритието, в чийто състав влиза хидрофобно полимерно вещество. Съгласно метода сърцевина, съдържаща фармацевтичноактивно вещество, се покрива чрез напръскване и при вдухване на топъл въздух със смес от вода и етанол при обемно съотношение от 1:4 до 3:7, в която предварително е разтворено хидрофобно полимерно вещество, например етилцелулоза, целулозен ацетат и ацетатно-бутиратна целулоза, или хидрофобно и хидрофилно полимерно вещество, например хидроксипропилцелулоза, хидроксипропилметилцелулоза, метилцелулоза, поливинилпиролидон, полиетиленгликол, ацетатно-сукцинатна хидроксипропилцелулоза и съполимер на метакриловата киселина и метилметакрилат, съответно при съотношение 0,05-0,5 тегл.ч. хидрофилно полимерно вещество на 1 тегл.ч. хидрофобно полимерно вещество. 2 претенции
BG087875A 1988-03-31 1989-03-29 Метод за получаване на покритие на фармацевтичен препарат с контролирано освобождаване на активното вещество BG50712A3 (bg)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8060488 1988-03-31

Publications (1)

Publication Number Publication Date
BG50712A3 true BG50712A3 (bg) 1992-10-15

Family

ID=13722933

Family Applications (1)

Application Number Title Priority Date Filing Date
BG087875A BG50712A3 (bg) 1988-03-31 1989-03-29 Метод за получаване на покритие на фармацевтичен препарат с контролирано освобождаване на активното вещество

Country Status (21)

Country Link
US (1) US5068112A (bg)
EP (1) EP0335560B2 (bg)
KR (1) KR950007202B1 (bg)
AT (1) ATE91888T1 (bg)
AU (1) AU610711B2 (bg)
BG (1) BG50712A3 (bg)
CA (1) CA1339078C (bg)
DE (1) DE68907762T3 (bg)
DK (1) DK156289A (bg)
ES (1) ES2059729T5 (bg)
FI (1) FI101344B1 (bg)
FR (1) FR2629344B1 (bg)
HK (1) HK76195A (bg)
HU (1) HU201882B (bg)
IE (1) IE64348B1 (bg)
IL (1) IL89695A0 (bg)
NO (1) NO178136C (bg)
PH (1) PH25791A (bg)
PT (1) PT90153B (bg)
RU (1) RU1836083C (bg)
ZA (1) ZA892131B (bg)

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Also Published As

Publication number Publication date
AU610711B2 (en) 1991-05-23
FI891163L (fi) 1989-10-01
HK76195A (en) 1995-05-26
PT90153B (pt) 1994-07-29
EP0335560A3 (en) 1990-12-27
HU201882B (en) 1991-01-28
EP0335560B2 (en) 2002-01-23
ZA892131B (en) 1989-11-29
RU1836083C (ru) 1993-08-23
FI891163A0 (fi) 1989-03-10
NO178136B (no) 1995-10-23
IE64348B1 (en) 1995-07-26
DK156289A (da) 1989-10-01
DE68907762D1 (de) 1993-09-02
KR950007202B1 (ko) 1995-07-04
NO178136C (no) 1996-01-31
FR2629344B1 (fr) 1994-09-16
AU3227389A (en) 1989-10-05
US5068112A (en) 1991-11-26
EP0335560B1 (en) 1993-07-28
PH25791A (bg) 1991-11-05
ATE91888T1 (de) 1993-08-15
HUT50050A (en) 1989-12-28
FR2629344A1 (fr) 1989-10-06
ES2059729T3 (es) 1994-11-16
DE68907762T3 (de) 2003-11-20
IL89695A0 (en) 1989-09-28
KR890014095A (ko) 1989-10-21
FI101344B (fi) 1998-06-15
NO891052L (no) 1989-10-02
CA1339078C (en) 1997-07-29
EP0335560A2 (en) 1989-10-04
DE68907762T2 (de) 1993-11-11
PT90153A (pt) 1989-11-10
DK156289D0 (da) 1989-03-30
FI101344B1 (fi) 1998-06-15
ES2059729T5 (es) 2002-09-16
IE891006L (en) 1989-09-30
NO891052D0 (no) 1989-03-13

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