Multilayer matrix systems for the controlled release of active p

Details Multilayer matrix systems for the controlled release of active p Multilayer matrix systems for the controlled release of active p

1993-11-16

1996-08-27

Webman, Edward J.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Tablets, lozenges, or pills

424458, A61K 924

Patent

active

055499139

ABSTRACT:
This invention concerns systems for the release of active principles which are capable of releasing active principle(s) into an aqueous medium at a controlled rate.
More precisely, the invention concerns a monolithic system for the controlled release of active principles, consisting of:

REFERENCES:
patent: 4869908 (1989-09-01), Kirschner et al.
patent: 5085865 (1992-02-01), Nayak

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