Sustained-release preparation

Details Sustained-release preparation Sustained-release preparation

A - Human Necessities

61

K

A61K 9/66 (2006.01) A61J 3/07 (2006.01) A61K 9/16 (2006.01) A61K 9/50 (2006.01) A61K 9/52 (2006.01) A61K 31/495 (2006.01) A61K 38/00 (2006.01) A61K 38/09 (2006.01) B01J 13/06 (2006.01)

Patent

CA 2159552

A microcapsule comprising an amorphous water-soluble physiologically active substance and a polymer; and a process for producing a microcapsule, which comprises dispersing in an aqueous phase a dispersion of an amorphous water-soluble physiologically active substance in a solution of a polymer in an organic solvent to prepare an s/o/w type emulsion and subjecting the emulsion to in-water drying.

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