Semi-enteric drug delivery systems and methods for preparing same
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United States of America Patent
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Dec 1, 1992
Grant Date -
N/A
app pub date -
Feb 14, 1992
filing date -
Feb 14, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention pertains to semi-enteric drug delivery systems which comprise (a) an inert core, (b) a first coating layer over the core comprising a medicament, and (c) a second coating layer over the first coating layer comprising a mixture of methacrylic acid copolymer, type C, and povidone present in a ratio by weight of from about 2:1 to about 24:1, respectively.
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