Prolonged release microcapsule

Details Prolonged release microcapsule Prolonged release microcapsule

1994-04-15

1995-12-19

Lovering, Richard D.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Implant or insert

424425, 424497, 424501, 42840221, 42840224, 514 2, 514800, 514963, 514965, A61K 952, B01J 1302, A61F 200

Patent

active

054766630

ABSTRACT:
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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