Taste masking compositions
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United States of America Patent
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-
Nov 20, 1990
Issued Date -
N/A
app pub date -
May 1, 1990
filing date -
Aug 26, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This disclosure relates to drug-polymer matrix compositions comprising an active ingredient having an amine or amido group and a pharmaceutically acceptable copolymer having a plurality of carboxylic acid and ester groups wherein the matrix dissociates in a media having a pH of less than 4, thereby releasing the active ingredient into the media.
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