Process for time-controlled release of active ingredients

Drug – bio-affecting and body treating compositions – Identification or warning feature – Taste or smell or chemical irritation to the eye – nose – or...

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424 22, A61K 922, A61K 926

Patent

active

046082484

ABSTRACT:
The present invention provides a process for the timed control of the liberation of active material from a retarded active material-containing composition by the addition of a hydrophilic polymer, wherein the rate of liberation is adjusted by means of the viscosity of the added hydrophilic polymer, the rate of liberation increasing with increasing viscosity.

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Chemical Abstracts, Pharmacodynamics, vol. 79, 1973, p. 25, Abstract 61534E.

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