Sustained release capsule

Details Sustained release capsule Sustained release capsule

1986-06-16

1989-01-17

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Capsules

424457, 424458, A61K 964

Patent

active

047987251

ABSTRACT:
The invention involves a sustained release pharmaceutical capsule for oral administration comprising, in a capsule shell, a particulate mixture comprising an active drug ingredient which is a weak acid, neutral, or a weak base, polyvinylpyrrolidone, and carboxyvinylpolymer.

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patent: 4126672 (1978-11-01), Sheth et al.
patent: 4152444 (1979-05-01), Vischer et al.
patent: 4252786 (1981-02-01), Weiss et al.
patent: 4343789 (1982-08-01), Kawata et al.
patent: 4370313 (1983-01-01), Davies
patent: 4404183 (1983-09-01), Kawata et al.
patent: 4610875 (1986-09-01), Panoz et al.
El Egakey, M. A., "In Vitro and in Vivo Release Studies of Nitrofurantoin from Coated Crystals", Acta Pharmaceutica Technologica, vol. 28, No. 4 (1982), pp. 267-271.

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