Sustained release pharmaceutical compositions in oral dosage for

Details Sustained release pharmaceutical compositions in oral dosage for Sustained release pharmaceutical compositions in oral dosage for

1989-10-04

1990-04-24

Dixon, Jr., William R.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Tablets, lozenges, or pills

424482, 424473, 424494, 424495, 424497, A61K 936, A61K 916

Patent

active

049199382

ABSTRACT:
Oral dosage forms for neutral, zwitterions or slats of acidic or basic drugs with approximate zero order release kinetics comprise a core matrix of the drug, and a gelling polymer, the matrix being coated with a water permeable but insoluble polymer.

REFERENCES:
patent: 4252786 (1981-02-01), Weiss et al.
patent: 4420480 (1983-12-01), Jones
patent: 4459279 (1984-07-01), Stricker et al.
patent: 4505890 (1985-03-01), Jain et al.
patent: 4572833 (1986-02-01), Pedersen et al.
patent: 4610870 (1986-09-01), Jain et al.
patent: 4656167 (1987-04-01), Nozulak et al.
patent: 4693896 (1987-09-01), Wheatley et al.
patent: 4695591 (1987-09-01), Hanna et al.
patent: 4716040 (1987-12-01), Panoz

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