Sustained-release preparation and production thereof

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

1988-05-16

1990-01-16

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Particulate form

424469, 424489, 424490, 424494, 424495, 424496, A61K 916

Patent

active

048942391

ABSTRACT:
The present invention concerns a sustained-release microcapsule preparation comprising an ion exchange resin with 6 to 16% crosslinking, containing a drug adsorbed in an amount not less than 80% of its theoretical ion adsorption amount and coated with a water-permeable polymer.

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patent: 4741872 (1988-05-01), De Luca et al.
patent: 4794002 (1988-12-01), Henis et al.

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