Two-phase matrix for sustained release drug delivery device

Details Two-phase matrix for sustained release drug delivery device Two-phase matrix for sustained release drug delivery device

1995-06-07

1998-11-24

Harrison, Robert H.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Matrices

424448, 424449, 424469, 514965, A61K 914, A61K 3138, A61K 4702, A61M 3700

Patent

active

058403361

ABSTRACT:
A two-phase hydrophilic drug-containing matrix for use in transdermal drug delivery patches in which one phase is a continuous hydrophobic polymer phase which optionally includes a hydrophobic solvent that acts as a skin permeation enhancer and the other phase is a dispersed particulate hydrated inorganic silicate in whose absorbed aqueous phase the drug is dissolved.

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