Sustained release pharmaceutical tablet of theophylline and production process thereof
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United States of America Patent
Stats
-
Sep 8, 1987
Grant Date -
N/A
app pub date -
Sep 28, 1984
filing date -
Apr 9, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sustained release pharmaceutical tablet comprising theophylline and ethyl cellulose uniformly dispersed therein in an amount of 5 to 200 parts by weight of ethyl cellulose based on 100 parts by weight of the theophylline, the hardness of the tablet being 0.5 to 16.0 kg. This sustained release pharmaceutical tablet can be prepared by uniformly mixing 100 parts by weight of theophylline and 5 to 200 parts by weight of ethyl cellulose, and compression molding the resultant mixture by a direct compression method to form a tablet.
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