Controlled release and taste masking oral pharmaceutical...

Details Controlled release and taste masking oral pharmaceutical... Controlled release and taste masking oral pharmaceutical...

2000-06-09

2008-10-07

Sheikh, Humera N (Department: 1618)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Tablets, lozenges, or pills

C424S464000, C424S465000, C424S469000, C424S470000, C424S474000, C424S484000, C424S486000, C424S487000, C424S488000, C424S489000, C424S490000, C424S497000

Reexamination Certificate

active

07431943

ABSTRACT:
Controlled release and taste masking compositions containing one or more active principles inglobated in a three-component matrix structure, i.e. a structure formed by successive amphiphilic, lipophilic or inert matrices and finally inglobated or dispersed in hydrophilic matrices. The use of a plurality of systems for the control of the dissolution of the active ingredient modulates the dissolution rate of the active ingredient in aqueous and/or biological fluids, thereby controlling the release kinetics in the gastrointestinal tract.

REFERENCES:
patent: 5342625 (1994-08-01), Hauer et al.
patent: 5597844 (1997-01-01), Chauhan et al.
patent: 6368635 (2002-04-01), Akiyama et al.
patent: 41 31 562 (1993-03-01), None
patent: 0 514 008 (1992-11-01), None
patent: 0 514 008 (1992-11-01), None
patent: 935639 (1963-09-01), None
patent: 96/13273 (1996-05-01), None
patent: WO 99/11245 (1999-03-01), None
patent: WO 99/17752 (1999-04-01), None

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