A vaginal drug delivery system includes a device formed of porous material that holds a flowable therapeutic formulation. The device, preferably in a soft, prewetted state, is inserted into the vagina to reside typically at or near the cervix where it continuously releases the flowable therapeutic formulation...http://www.google.de/patents/US7824383?utm_source=gb-gplus-sharePatent US7824383 - Vaginal drug delivery system and method
