Pharmaceutical compositions with controlled release, and a method for their preparation
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United States of America Patent
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Apr 16, 1991
Grant Date -
N/A
app pub date -
Nov 28, 1988
filing date -
Apr 8, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Pharmaceutical compositions including a microporous support and an active substance incorporated therein, the incorporation of the active substance being effected by adding the microporous support to a solution of the active substance, stirring the mixture obtained for at least 70 hours at ambient temperature and finally evaporating the solvent slowly.
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