Swelling modulated polymeric drug delivery device

Details Swelling modulated polymeric drug delivery device Swelling modulated polymeric drug delivery device

A - Human Necessities

61

K

167/166

A61K 9/26 (2006.01) A61K 9/00 (2006.01) A61K 9/28 (2006.01)

Patent

CA 2029383

A controlled release drug delivery device, comprised of swellable polymers, whose degree of swelling in an environment of use is controlled by swelling modulators blended within the polymers, is disclosed. The swelling modulators can include buffers, osmagents, surfactants or combinations thereof surrounded by a microporous coating or interspersed within individual matrices. The combination of controlled release swelling modulators with swellable polymers may be applied to regulate patterns of beneficial agent (typically a drug) release.

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