Solvent extraction process

Details Solvent extraction process Solvent extraction process

A - Human Necessities

61

K

167/164

A61K 9/50 (2006.01) A61K 9/16 (2006.01) B01J 13/20 (2006.01)

Patent

CA 2020755

ABSTRACT OF THE DISCLOSURE There is disclosed a process for the extraction of volatile solvents entrained in a polymer-based pharmaceutical composition designed for sustained release of drug over an extended period of time prepared in microcapsule form wherein the composition comprises at least one hormonally active water-soluble polypeptide which process comprises the steps of contacting the composition with a stream of pressurized gas, and then removing the pressurized gas, and volatile solvents extracted from the pharmaceutical composition contained therein.

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