Method for preparing preparations having controlled release of a

Details Method for preparing preparations having controlled release of a Method for preparing preparations having controlled release of a

1979-02-21

1981-09-15

Silverberg, Sam

Coating processes

Fraud or tamper detecting

424 19, 424 23, 424 21, A61K 2712

Patent

active

042897955

ABSTRACT:
A method of preparing a preparation made up by bodies comprising an active component in decreasing concentration towards the surface of the bodies. The method comprises coating a particle with a composition comprising the active component in a continuous coating operation whereby the concentration of the active component is decreased. The active component may be a drug, a pesticide or an agent having some other effect.

REFERENCES:
patent: 2928770 (1960-03-01), Bardani
patent: 3383283 (1968-05-01), Brendamour

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