Sustained-release theophylline tablet
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United States of America Patent
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Jul 30, 2002
Grant Date -
N/A
app pub date -
Mar 21, 2000
filing date -
Sep 30, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A theophylline sustained release tablet obtained by coating core granules composed mainly of theophylline with a layer of a coating film composed of a hydrophobic material and a plastic excipient and optionally containing an enteric polymer material to form coated granules and then by compressing the coated granules together with a disintegrating excipient.
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