DE3675748D1 - System zur gesteuerten freisetzung von wirksubstanzen. - Google Patents

System zur gesteuerten freisetzung von wirksubstanzen.

Info

Publication number
DE3675748D1
DE3675748D1 DE8686116649T DE3675748T DE3675748D1 DE 3675748 D1 DE3675748 D1 DE 3675748D1 DE 8686116649 T DE8686116649 T DE 8686116649T DE 3675748 T DE3675748 T DE 3675748T DE 3675748 D1 DE3675748 D1 DE 3675748D1
Authority
DE
Germany
Prior art keywords
polymeric material
deposit
swelling
core
active substance
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.)
Expired - Lifetime
Application number
DE8686116649T
Other languages
English (en)
Inventor
Paolo Colombo
Manna Aldo La
Ubaldo Conte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jagotec AG
Original Assignee
Jagotec AG
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=11206044&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3675748(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Jagotec AG filed Critical Jagotec AG
Application granted granted Critical
Publication of DE3675748D1 publication Critical patent/DE3675748D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • A61K9/20—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
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2022—Organic macromolecular compounds
    • A61K9/2027—Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
    • 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
    • A61K9/2072—Pills, 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
    • 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
    • A61K9/2072—Pills, 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
    • A61K9/2086—Layered tablets, e.g. bilayer tablets; Tablets of the type inert core-active coat
    • 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
    • A61K9/2072—Pills, 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
    • A61K9/2086—Layered tablets, e.g. bilayer tablets; Tablets of the type inert core-active coat
    • A61K9/209—Layered tablets, e.g. bilayer tablets; Tablets of the type inert core-active coat containing drug in at least two layers or in the core and in at least one outer layer

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Medicinal Preparation (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
DE8686116649T 1985-12-20 1986-12-01 System zur gesteuerten freisetzung von wirksubstanzen. Expired - Lifetime DE3675748D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT23321/85A IT1188212B (it) 1985-12-20 1985-12-20 Sistema per il rilascio a velocita' controllata di sostanze attive

Publications (1)

Publication Number Publication Date
DE3675748D1 true DE3675748D1 (de) 1991-01-03

Family

ID=11206044

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686116649T Expired - Lifetime DE3675748D1 (de) 1985-12-20 1986-12-01 System zur gesteuerten freisetzung von wirksubstanzen.

Country Status (11)

Country Link
US (1) US4839177A (de)
EP (1) EP0226884B1 (de)
JP (1) JP2535339B2 (de)
AT (1) ATE58472T1 (de)
AU (1) AU594992B2 (de)
CA (1) CA1298479C (de)
DE (1) DE3675748D1 (de)
ES (1) ES2018468B3 (de)
GR (1) GR3001141T3 (de)
IT (1) IT1188212B (de)
NZ (1) NZ218596A (de)

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* Cited by examiner, † Cited by third party
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ATE58472T1 (de) 1990-12-15
JP2535339B2 (ja) 1996-09-18
ES2018468B3 (es) 1991-04-16
EP0226884B1 (de) 1990-11-22
AU6672586A (en) 1987-06-25
US4839177A (en) 1989-06-13
IT1188212B (it) 1988-01-07
EP0226884A2 (de) 1987-07-01
JPS62155211A (ja) 1987-07-10
EP0226884A3 (en) 1988-06-01
IT8523321A0 (it) 1985-12-20
CA1298479C (en) 1992-04-07
GR3001141T3 (en) 1992-06-25
NZ218596A (en) 1989-08-29
AU594992B2 (en) 1990-03-22

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