Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Implant or insert
Patent
1999-05-12
2000-12-05
Page, Thurman K.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Implant or insert
424423, 424424, 6048911, A61F 1300, A61F 200, A61K 922
Patent
active
061563315
ABSTRACT:
The invention is directed to a device for delivering an active agent formulation for a predetermined administration period. An impermeable reservoir is divided into a water-swellable agent chamber and an active agent formulation chamber. Fluid from the environment is imbibed through a semipermeable plug into the water-swellable agent chamber and the active agent formulation is released through a back-diffusion regulating outlet. Delivery periods of up to 2 years are achieved.
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Dionne Keith E.
Eckenhoff, deceased James B.
Landrau Felix A.
Lautenbach Scott D.
Magruder Judy A
ALZA Corporation
Clarke Pauline A.
Dillahunty Mary Ann
Page Thurman K.
Stone Steven F.
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