Theophylline sustained release granule

Details Theophylline sustained release granule Theophylline sustained release granule

1980-01-02

1981-04-14

Rose, Shep K.

Drug, bio-affecting and body treating compositions

Identification or warning feature

Taste or smell or chemical irritation to the eye, nose, or...

424 22, 424 35, 424253, A61K 922, A61K 936, A61K 3152

Patent

active

042619700

ABSTRACT:
A Theophylline sustained release granule comprises 10 to 45 wt. % of Theophylline, 30 to 60 wt. % of a metal salt of higher fatty acid and 0.5 to 10 wt. % of ethyl cellulose at a ratio of 1:1 to 1:3 by weight of Theophylline to said metal salt of higher fatty acid.
The Theophylline sustained release granule is effective for maintaining a suitable concentration of Theophylline in blood for a long time.

REFERENCES:
patent: 2928769 (1960-03-01), Gaunt
patent: 3062720 (1962-11-01), Costello
patent: 3079303 (1963-02-01), Raff et al.
patent: 3101293 (1963-08-01), Gaunt et al.
patent: 3102845 (1963-09-01), Fennell
patent: 3115441 (1963-12-01), Hermelin
patent: 3133863 (1964-05-01), Tansey
patent: 3136695 (1964-06-01), Tansey
patent: 3148124 (1964-09-01), Gaunt
patent: 3629393 (1971-12-01), Nakamoto et al.
patent: 3773920 (1973-11-01), Nakamoto et al.

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