Controlled release azelastine-containing pharmaceutical compositions
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United States of America Patent
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Dec 21, 1993
Issued Date -
N/A
app pub date -
Apr 10, 1992
filing date -
Apr 20, 1988
priority date (Note) -
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Abstract
Azelastine-containing pharmaceutical compositions which provide controlled release of the active substance using a sustained release component. The compositions contain azelastine or a physiologically acceptable salt of azelastine, together with 0.001 to 800 parts of sustained release component for each part by weight of azelastine (calculated as base) and the release rate of azelastine is between 0.05 and 5 mg per hour.
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