Sustained release pharmaceutical tablet of theophylline and prod

Details Sustained release pharmaceutical tablet of theophylline and prod Sustained release pharmaceutical tablet of theophylline and prod

1984-09-28

1987-09-08

Rose, Shep K.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Tablets, lozenges, or pills

514263, A61K 926, A61K 3152

Patent

active

046923373

ABSTRACT:
A sustained release pharmaceutical tablet comprising theophylline and ethyl cellulose uniformly dispersed therein in an amount of 5 to 200 parts by weight of ethyl cellulose based on 100 parts by weight of the theophylline, the hardness of the tablet being 0.5 to 16.0 kg. This sustained release pharmaceutical tablet can be prepared by uniformly mixing 100 parts by weight of theophylline and 5 to 200 parts by weight of ethyl cellulose, and compression molding the resultant mixture by a direct compression method to form a tablet.

REFERENCES:
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patent: 3860733 (1975-01-01), Morse et al.
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patent: 4465660 (1984-08-01), David et al.
patent: 4547358 (1985-10-01), David et al.
patent: 4590062 (1986-05-01), Jang

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