| abstract |
A process for improving the release kinetics of a monolithic active agent delivery device comprising a shaped body of a dispersion of particulate active agent, such as a drug, with a polymer matrix, such as ethylene/vinylacetate copolymer, by substantially reducing the initial burst of active agent from the device when it is placed in its environment of use. The process involves prior to placing the body in its use environment removing, such as by water washing, the particulate drug from the exterior surface of the body to form an agent depleted layer of polymer matrix voided by the removal of the agent, the thickness of the layer being at least 5% of the overall body thickness. |