System for osmotic delivery of pharmaceutically active agents

Details System for osmotic delivery of pharmaceutically active agents System for osmotic delivery of pharmaceutically active agents

2005-01-04

2005-01-04

Kunz, Gary (Department: 1616)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Tablets, lozenges, or pills

C424S464000, C424S465000, C424S468000, C424S471000, C424S473000, C424S474000, C424S484000, C514S960000, C514S964000

Reexamination Certificate

active

06838093

ABSTRACT:
An osmotic system for delivering a pharmaceutically active agent which comprises a core portion, a layer portion enclosing the core portion, and a semipermeable wall portion enclosing the core portion and the layer portion. The core portion includes the pharmaceutically active agent at a first concentration. The pharmaceutically active agent is present in the layer portion at a second concentration. The second concentration is greater than the first concentration. Such a system provides for the osmotic release of the pharmaceutically active agent in release profile other than a zero order release profile, and wherein the release profile is similar to or approaches or reaches a first order release profile.

REFERENCES:
patent: 4662880 (1987-05-01), Hamel et al.
patent: 4801461 (1989-01-01), Hamel et al.
patent: 5681584 (1997-10-01), Savastano et al.
patent: 5783212 (1998-07-01), Fassihi et al.
patent: 6004582 (1999-12-01), Faour et al.
patent: 6051585 (2000-04-01), Weinstein et al.
patent: 6248359 (2001-06-01), Faour
patent: 6491949 (2002-12-01), Faour et al.

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