Bilayered oral pharmaceutical composition with pH dependent rele

Details Bilayered oral pharmaceutical composition with pH dependent rele Bilayered oral pharmaceutical composition with pH dependent rele

1991-12-02

1994-05-31

Webman, Edward

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Tablets, lozenges, or pills

424471, 424494, 424495, 424497, 424461, 424462, A61K 924, A61K 958, A61K 962, A61K 916

Patent

active

053167724

ABSTRACT:
An oral pharmaceutical composition comprises a core containing a drug, a first inner layer coating on the core which contains a drug, and a second inner layer coating on the first inner layer coating which also contains drug. This oral pharmaceutical composition is used especially for treating intestinal diseases.

REFERENCES:
patent: 3431338 (1969-03-01), Munzel
patent: 4432966 (1984-02-01), Zeitoun et al.
patent: 4780318 (1988-10-01), Appelgren et al.
patent: 4863742 (1989-09-01), Panoz et al.
patent: 4904474 (1990-02-01), Theeuwes
patent: 4980173 (1990-12-01), Halskov

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