Sustained release multi-core microsphere preparation and method

Details Sustained release multi-core microsphere preparation and method Sustained release multi-core microsphere preparation and method

1993-09-30

1997-02-18

Azpuru, Carlos

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Particulate form

424489, 424490, 424497, 424501, 42440221, 514937, 514938, 264 41, 264 433, 264 46, A61K 950, A61K 914, A61K 916, B01J 1302

Patent

active

056039611

ABSTRACT:
Sustained release multi-core microsphere preparation which shows high incorporation efficiency of medicament and can release the medicament at a specific rate, which comprises two or more biodegradable polymers and a pharmaceutically active ingredient, and has the medicament incorporated into microregions which are produced by one of these polymers (the first polymer), and these microregions are distributed in other biodegradable polymers (the second polymer), or a method for producing the same.

REFERENCES:
patent: 4940588 (1990-07-01), Sparks et al.
patent: 5100669 (1992-03-01), Hyon et al.

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