Drug delivery system with means for obtaining desirable in vivo release rate pattern
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United States of America Patent
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Jul 25, 1989
Issued Date -
N/A
app pub date -
Jun 8, 1987
filing date -
Feb 13, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A delivery device is disclosed for delivering a beneficial drug to a biological environment of use. The device comprises a hydrogel reservoir containing tiny pills. The tiny pills comprise a wall surrounding a drug core.
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