PROCESS FOR PRODUCING PHARMACEUTICAL COMPOSITIONS WITH CONTROLLED RELEASE OF ACTIVE INGREDIENT AND HAVING GOOD STORING PROPERTIES

Disclosed is a controlled release pharmaceutical preparation, comprising a core containing a pharmaceutically active ingredient, and a porous film of a hydrophobic polymeric substance or a hydrophobic polymeric substance and a hydrophilic polymeric substance, the core being coated with the porous fi...

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Main Authors SAMEJIMA,MASAYOSHI,JP, YOSHINO,HIROYUKI,JP, NODA,KAZUO,JP, HIRAKAWA,YOSHIYUKI,JP
Format Patent
LanguageEnglish
Published 28.01.1991
Edition5
Subjects
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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Summary:Disclosed is a controlled release pharmaceutical preparation, comprising a core containing a pharmaceutically active ingredient, and a porous film of a hydrophobic polymeric substance or a hydrophobic polymeric substance and a hydrophilic polymeric substance, the core being coated with the porous film. Also disclosed is a method for producing the same.
Bibliography:Application Number: HU19890001612