Controlled release pharmaceutical delivery device and...

Details Controlled release pharmaceutical delivery device and... Controlled release pharmaceutical delivery device and...

2011-03-15

2011-03-15

Fetterolf, Brandon J (Department: 1628)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Matrices

C424S425000, C424S468000

Reexamination Certificate

active

07906143

ABSTRACT:
The present invention relates to a controlled release pharmaceutical delivery device which provides sustained or pulsatile delivery of a selected pharmaceutically active substance for a predetermined period of time. The device comprises about 1 to 80% by weight covalently crosslinked water insoluble, water-swellable polymers and about 1 to 75% by weight uncrosslinked, linear water soluble polymers.The invention also provides pharmaceutical compositions and methods for making such compositions in which a pharmaceutically active agent is incorporated into the delivery device.

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Steward 1995 Review of Pharmaceutical Controlled Release Method and Devices12 pages.

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