GB867734A - Delayed-release pharmaceutical preparations - Google Patents

Delayed-release pharmaceutical preparations

Info

Publication number
GB867734A
GB867734A GB3372259A GB3372259A GB867734A GB 867734 A GB867734 A GB 867734A GB 3372259 A GB3372259 A GB 3372259A GB 3372259 A GB3372259 A GB 3372259A GB 867734 A GB867734 A GB 867734A
Authority
GB
United Kingdom
Prior art keywords
esters
ester
acid
gms
styrene
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
Application number
GB3372259A
Other languages
English (en)
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.)
Bayer AG
Original Assignee
Bayer 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
Application filed by Bayer AG filed Critical Bayer AG
Publication of GB867734A publication Critical patent/GB867734A/en
Expired 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
    • A61K9/14—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
    • A61K9/1605—Excipients; Inactive ingredients
    • A61K9/1629—Organic macromolecular compounds
    • A61K9/1635—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
    • A61K9/28—Dragees; Coated pills or tablets, e.g. with film or compression coating
    • A61K9/2806—Coating materials
    • A61K9/282—Organic compounds, e.g. fats
    • 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
    • A61K9/284—Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone
    • A61K9/2846—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
    • A61K9/48—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
    • A61K9/5005—Wall or coating material
    • A61K9/5021—Organic macromolecular compounds
    • A61K9/5026—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
    • A61K9/48—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

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)
GB3372259A 1958-10-10 1959-10-05 Delayed-release pharmaceutical preparations Expired GB867734A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF26778A DE1078284B (de) 1958-10-10 1958-10-10 Umhuellung von Arzneimitteln mit magenresistenten darmloeslichen Schutzschichten

Publications (1)

Publication Number Publication Date
GB867734A true GB867734A (en) 1961-05-10

Family

ID=7092158

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3372259A Expired GB867734A (en) 1958-10-10 1959-10-05 Delayed-release pharmaceutical preparations

Country Status (5)

Country Link
BE (1) BE583454A (xx)
DE (1) DE1078284B (xx)
GB (1) GB867734A (xx)
NL (1) NL244182A (xx)
SE (1) SE303349B (xx)

Also Published As

Publication number Publication date
DE1078284B (de) 1960-03-24
BE583454A (xx)
SE303349B (xx) 1968-08-26
NL244182A (xx)

Similar Documents

Publication Publication Date Title
US2378629A (en) Copolymers of maleic anhydride
DK0856533T3 (da) Coatingmidler baseret på hydroxylgruppeholdige copolymerisater
GB1411063A (en) Polymerisation process
MY142836A (en) Self-extinguishing catalyst composition with monocarboxylic acid ester internal donor and propylene polymerization process
GB867734A (en) Delayed-release pharmaceutical preparations
Pittman Jr et al. Copolymerization of pentachlorophenyl acrylate with vinyl acetate and ethyl acrylate. Polymer‐bound fungicides
GB1266661A (xx)
CA2127526A1 (en) Method for Manufacture of Polymers
ATE63565T1 (de) Waessrige sekundaerdispersionen.
ES2181206T3 (es) Polimerizacion catalizada por acido mejorada.
JPS54131649A (en) Agricultural film
GB838656A (en) Production of resinous compositions
US3070509A (en) Process for coating medicaments
ES2192337T3 (es) Procedimiento para la preparacion de dispersiones de poli(esteres vinilicos), libres de disolventes, que tienen una resistencia aumentada al agua.
US2311261A (en) Esters of endo-methylene hexahydrophthalic acids with higher aliphatic alcohols
US2224944A (en) Thermally stable coating composition from vinylidene chloride resins
NO976154D0 (no) Polymerer med bakteriofobe og eventuelt celle-proliferasjonsinhiberende egenskaper
US2980654A (en) Copolymers of n-vinylpyrrolidones with dialkyl maleates or fumarates
GB1079725A (en) Tertiary-alkyl peralkenoates, their preparation and the use thereof in polymerisationprocesses
CA1099449A (en) Internally plasticized vinyl chloride copolymer composition
US2914510A (en) Certain novel amphoteric polyelectrolytes
US3787366A (en) Reactive beta-lactone-containing polymers and a method for their preparation
JPS5650941A (en) Covering resin composition
US5300580A (en) Modified ethylene/n-butyl acrylate copolymers having improved adhesion
US3310518A (en) Process for preparing polymer solutions