Drug – bio-affecting and body treating compositions – Identification or warning feature – Taste or smell or chemical irritation to the eye – nose – or...
Patent
1982-08-18
1984-07-10
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 21, 424 22, 424 32, 424 33, A61K 2712
Patent
active
044592795
ABSTRACT:
A pharmaceutical dosage unit retard form having a constant, pH-independent release rate of active ingredient, consisting of a core comprising an active ingredient, and a semi-permeable diffusion coating over the core, where the coating consists of a water-insoluble film-former, a water-soluble polymer and eventually an acid-insoluble polymer incorporated therein.
REFERENCES:
patent: 2853420 (1958-09-01), Lowey
patent: 2928770 (1960-03-01), Bardani
patent: 2971889 (1961-02-01), Swintosky
patent: 3247066 (1966-04-01), Milosovich
patent: 3344029 (1967-09-01), Berger
patent: 3371015 (1968-02-01), Sjogren et al.
patent: 3538214 (1970-11-01), Polli et al.
patent: 3835221 (1974-09-01), Fulberth et al.
patent: 3917813 (1975-11-01), Pedersen
patent: 4083949 (1978-04-01), Benedickt
patent: 4361546 (1982-11-01), Stricker et al.
Spitael, Pharm. Ind. 39(5): 502-505 (1977) "Factors Affecting the Dissolution Rate of Enteric Coatings".
Arndts Dietrich
Bechtel Wolf D.
Bozler Gerhard
Brickl Rolf
Darda Siegfried
Boehringer Ingelheim GmbH
Rose Shep K.
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