Implantable or insertable medical devices are described. The medical devices comprise (a) a therapeutic agent and (b) a polymeric release region, which controls the release of the therapeutic agent upon administration to a patient. The polymeric release region further comprises an acrylic copolymer, which comprises (i) a plurality of rubbery acrylic units and (ii) a plurality of hard units. Also described are methods for administering a therapeutic agent to a patient using the above implantable or insertable medical devices as well as methods of making the above devices.
