Delivery system comprising fluid ingress and drug egress

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Implant or insert

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Details

424422, 424426, 424473, A61K 922

Patent

active

051749998

ABSTRACT:
A delivery system is disclosed for delivering a beneficial agent to an animal. The delivery system comprises a wall that surrounds a lumen, said wall comprising a composition that limits the passage of fluid into the system and a composition that permits the passage of fluid into the system. The lumen comprises a beneficial agent and an expandable member. The delivery system comprises an exit means for delivering the beneficial agent.

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