Sustained release preparation
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United States of America Patent
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Jul 5, 1988
Grant Date -
N/A
app pub date -
Jun 4, 1986
filing date -
Jun 4, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sustained release preparation comprising: (a) a non-anionic cellulose ether (b) a methoxyethylene-maleic anhydride copolymer or the hydrolyzate thereof, and (c) pharmaceutically active agents. This sustained release preparation can provide the desired sustained-release or dissolution of the pharmaceutically active agents in human organs irrespective of the acidity (i.e., pH conditions) therein.
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