Method for producing microcapsule

Details Method for producing microcapsule Method for producing microcapsule

A - Human Necessities

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A61K 9/52 (2006.01) A61K 9/16 (2006.01) A61K 9/50 (2006.01) A61K 38/05 (2006.01) A61K 38/08 (2006.01) A61K 38/09 (2006.01) A61K 38/33 (2006.01) A61K 38/37 (2006.01) B01J 13/02 (2006.01) B01J 13/12 (2006.01)

Patent

CA 1233414

METHOD FOR PRODUCING MICROCAPSULE Abstract of the Disclosure A microcapsule produced by preparing a water-in-oil emulsion comprising an inner aqueous layer containing said water-soluble drug and a drug retaining substance therefor and an oil layer containing a polymer substance, then thickening or solidifying said inner aqueous layer to a viscosity of not lower than about 5000 centiposes and finally subjecting the resulting emulsion to in water drying gives prolonged release of water-soluble drug.

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