Enteric-soluble preparations

Details Enteric-soluble preparations Enteric-soluble preparations

1984-04-13

1987-04-28

Griffin, Ronald W.

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

106162, 1061972, 427 3, 424497, A61K 932, C08L 128

Patent

active

046611622

ABSTRACT:
An enteric-soluble composition for coating drugs and the like comprises a conventional enteric-soluble polymer in admixture with a polyanionic polymer which is soluble at low pH values. By altering proportions and types of both polymer, it is possible to alter the pH value at which the composition will disintegrate to release the drug or the like.

REFERENCES:
patent: 3640741 (1972-02-01), Etes
patent: 3909444 (1975-09-01), Anderson et al.
patent: 4138013 (1979-02-01), Okajima
patent: 4287221 (1981-09-01), Tonedachi et al.
patent: 4341563 (1982-07-01), Kurihara et al.
patent: 4497847 (1985-02-01), Kurihara et al.
patent: 4533562 (1985-08-01), Ikegami et al.

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