Sustained-release preparation and production thereof

Details Sustained-release preparation and production thereof Sustained-release preparation and production thereof

A - Human Necessities

61

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167/166, 167/227

A61K 31/485 (2006.01) A61K 9/18 (2006.01) A61K 9/50 (2006.01) A61K 9/52 (2006.01) A61K 31/135 (2006.01) A61K 47/48 (2006.01)

Patent

CA 1328072

Abstract of the Disclosure The present invention concerns a sustained-release microcapsule preparation comprising an ion exchange resin. with 6 to 16% crosslinking, containing a drug adsorbed to not less than 80% of its theoretical ion adsorption amount and coated with a water-permeable polymer. The sustained-release preparation of this invention contains a high concentration of an absorbed drug: it shows neither cracking nor breaking in its coat and exhibits good sustained-release properties which enhance its dosage form design and makes it easy to take.

568339

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