Cellulosic coating

Details Cellulosic coating Cellulosic coating

1989-10-23

1992-06-30

Page, Thurman K.

Drug, bio-affecting and body treating compositions

In vivo diagnostic or in vivo test agent which contains an...

424468, 106186, 106162, A61K 924

Patent

active

051261464

ABSTRACT:
A microporous, cellulosic coating useful in combination with osmotically controlled drug delivery devices is disclosed. In one embodiment, this coating results from application to core tablets of a coating dispersion comprised of a synthetic latex formed by emulsification of cellulosic polymers stabilized by surfactants, containing a water-soluble pore forming agent and a plasticizer.

REFERENCES:
patent: 4931285 (1990-06-01), Edgren et al.
Bindschaedler et al., J. Controlled Release 4(1986) 203--212.

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