Bioerodible implants
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United States of America Patent
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Nov 17, 1998
Issued Date -
N/A
app pub date -
Sep 2, 1992
filing date -
Aug 22, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A bioerodible controlled release dosage form is disclosed comprising a polymer formed by condensing beneficial agents having a hydroxyl functionality of two or more with diketene acetals or divinyl ethers which delivers beneficial agents to a biological environment of use. A statistically significant portion of the beneficial agent is covalently bonded within the polymer matrix.
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