| abstract |
Triblock copolymers containing polyester and polyethylene glycol and diblock copolymers containing polyester and end-capped polyethylene glycols, as well as medroxyprogesterone acetate, levonogestrel, cyclosporine, progesterone or bupivacaine Biodegradable drug delivery compositions comprising one or more pharmaceutically active ingredients or hydrophobic active ingredients such as are described. |