Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Tablets – lozenges – or pills
Patent
1997-02-14
1998-07-14
Page, Thurman K.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Tablets, lozenges, or pills
424466, 424472, 424482, A61K 928
Patent
active
057800570
ABSTRACT:
A description is given of a pharmaceutical form for oral administration consisting of a two- or three-layers tablet, wherein at least one layer can rapidly swell by contact with biological and/or aqueous fluids, said swelling resulting in a considerable increase in the tablet volume. Said phenomenon determines a prolonged residence of the pharmaceutical form at the gastric level and therefore allows a slow release of the active ingredient from said pharmaceutical form to the stomach and/or the first tract of the intestine.
REFERENCES:
patent: 4160020 (1979-07-01), Ayer et al.
patent: 4839171 (1989-06-01), Colombo et al.
patent: 4839177 (1989-06-01), Columbo et al.
patent: 5487901 (1996-01-01), Conte et al.
patent: 5650169 (1997-07-01), Conte et al.
Conte Ubaldo
Maggi Lauretta
Jagotec AG
Page Thurman K.
Shelborne Kathryne E.
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