ZA941262B - PH-triggered osmotic bursting delivery devices - Google Patents

PH-triggered osmotic bursting delivery devices

Info

Publication number
ZA941262B
ZA941262B ZA941262A ZA941262A ZA941262B ZA 941262 B ZA941262 B ZA 941262B ZA 941262 A ZA941262 A ZA 941262A ZA 941262 A ZA941262 A ZA 941262A ZA 941262 B ZA941262 B ZA 941262B
Authority
ZA
South Africa
Prior art keywords
beneficial agent
osmotic bursting
osmagent
semipermeable membrane
delivery devices
Prior art date
Application number
ZA941262A
Other languages
English (en)
Inventor
Scott M Herbig
Kelly L Smith
Original Assignee
Pfizer
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
Application filed by Pfizer filed Critical Pfizer
Publication of ZA941262B publication Critical patent/ZA941262B/xx

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
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/4816—Wall or shell material
    • 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
    • A61K9/0002—Galenical forms characterised by the drug release technique; Application systems commanded by energy
    • A61K9/0004—Osmotic delivery systems; Sustained release driven by osmosis, thermal energy or gas
    • 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
    • A61K9/2886—Dragees; Coated pills or tablets, e.g. with film or compression coating having two or more different drug-free coatings; Tablets of the type inert core-drug layer-inactive layer
    • 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
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (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)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Preparation (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • External Artificial Organs (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Detergent Compositions (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
ZA941262A 1993-02-25 1994-02-24 PH-triggered osmotic bursting delivery devices ZA941262B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/023,227 US5358502A (en) 1993-02-25 1993-02-25 PH-triggered osmotic bursting delivery devices

Publications (1)

Publication Number Publication Date
ZA941262B true ZA941262B (en) 1995-08-24

Family

ID=21813831

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA941262A ZA941262B (en) 1993-02-25 1994-02-24 PH-triggered osmotic bursting delivery devices

Country Status (19)

Country Link
US (2) US5358502A (xx)
EP (1) EP0612520B1 (xx)
JP (1) JP2862222B2 (xx)
CN (1) CN1098286A (xx)
AT (1) ATE202927T1 (xx)
AU (1) AU660386B2 (xx)
CA (1) CA2116288C (xx)
DE (1) DE69427664T2 (xx)
DK (1) DK0612520T3 (xx)
ES (1) ES2157953T3 (xx)
FI (1) FI113941B (xx)
GR (1) GR3036497T3 (xx)
IL (1) IL108691A0 (xx)
MX (1) MX9401396A (xx)
NO (1) NO312123B1 (xx)
NZ (1) NZ250967A (xx)
PT (1) PT612520E (xx)
TW (1) TW283641B (xx)
ZA (1) ZA941262B (xx)

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Also Published As

Publication number Publication date
JPH072645A (ja) 1995-01-06
GR3036497T3 (en) 2001-11-30
NZ250967A (en) 1996-02-27
FI113941B (fi) 2004-07-15
ES2157953T3 (es) 2001-09-01
AU5640094A (en) 1994-09-22
FI940866A0 (fi) 1994-02-24
IL108691A0 (en) 1994-05-30
DE69427664T2 (de) 2001-10-25
EP0612520A3 (en) 1995-11-15
DE69427664D1 (de) 2001-08-16
JP2862222B2 (ja) 1999-03-03
AU660386B2 (en) 1995-06-22
DK0612520T3 (da) 2001-09-17
NO312123B1 (no) 2002-03-25
EP0612520B1 (en) 2001-07-11
CA2116288A1 (en) 1994-08-26
NO940642D0 (no) 1994-02-24
PT612520E (pt) 2001-12-28
TW283641B (xx) 1996-08-21
US5609590A (en) 1997-03-11
EP0612520A2 (en) 1994-08-31
FI940866A (fi) 1994-08-26
MX9401396A (es) 1994-08-31
US5358502A (en) 1994-10-25
NO940642L (no) 1994-08-26
CN1098286A (zh) 1995-02-08
CA2116288C (en) 1997-11-18
ATE202927T1 (de) 2001-07-15

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