BIOERODIBLE IMPLANTABLE CONTROLLED RELEASE DOSAGE FORM COMPRISING A POLY(ORTHO ESTER) OR A POLYACETAL WITH AN ACTIVE AGENT INCORPORATED INTO THE CHAIN BACKBONE

摘要

A bioerodible controlled release dosage form (1) is disclosed comprising a polymer formed by condensing beneficial agents (2) 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 (2) is covalently bonded within the polymer matrix (3). IMAGE