Controlled release formulation of captopril or a prodrug of captopril
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United States of America Patent
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Mar 17, 1998
Grant Date -
N/A
app pub date -
Nov 16, 1994
filing date -
Nov 16, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention provides a controlled release pharmaceutical unit dose composition for oral administration which comprises: (a) an internal phase which comprises captopril or a prodrug of captopril in admixture with a hydrogel forming agent; and (b) an external phase which comprises a coating which resists dissolution in the stomach.
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