Controlled release pharmaceutical preparation and process for pr

Details Controlled release pharmaceutical preparation and process for pr Controlled release pharmaceutical preparation and process for pr

1991-06-27

1994-06-28

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Matrices

424422, 424465, 424468, 424469, 424484, 424600, 424641, 424646, 424682, 424435, 424436, 424423, 5147723, 514953, 514965, 514944, A61K 914, A61K 922

Patent

active

053245237

ABSTRACT:
Controlled release pharmaceutical preparations are prepared by homogenizing an organic or inorganic pharmaceutical active substance such as an opium alkaloid or its salts, an opium antagonist or its salts, an aliphatic or aromatic amine derivative or its salts, a phenolate type medicament, or Zn, Fe, Mg, K, Na salts, a fatty acid or its salt necessary to achieve a continuous phase transfer and an ethylene vinyl acetate copolymer and formulating the resulting homogeneous mixture by

REFERENCES:
patent: 4177256 (1979-12-01), Michaels et al.
patent: 4237114 (1980-12-01), Cardarelli
patent: 4663147 (1987-05-01), DePrince
patent: 4761289 (1988-08-01), Shalati et al.
patent: 4830860 (1989-05-01), Ranade
patent: 4913906 (1990-04-01), Friedman et al.

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