Stable drug form for oral administration and process for the preparation thereof

The invention relates to a stable drug form which is for oral administration and comprises: (a) a core comprising one or more active ingredients which are not to be released until after they have passed through the stomach, together with conventional pharmaceutical adjuvants, (b) an intermediate lay...

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Bibliographic Details
Main Authors CLAUDIO LORCK, THOMAS PROFITLICH, GERD-ULFERT HEESE, ARNIM LAICHER, GERD WEISS, HERBERT JUNGER, PETER WOLFEGG
Format Patent
LanguageEnglish
Published 21.01.1998
Edition6
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS
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Summary:The invention relates to a stable drug form which is for oral administration and comprises: (a) a core comprising one or more active ingredients which are not to be released until after they have passed through the stomach, together with conventional pharmaceutical adjuvants, (b) an intermediate layer applied to the core, and (c) an external layer which is resistant to gastric juice. The intermediate layer in (b) is in the form of a reactive layer comprising a polymeric layered material which is partly neutralised with alkalis, is resistant to gastric juice and has cation-exchanger capacity. A process for the preparation of the stable drug form is also disclosed.
Bibliography:Application Number: AU19970034388