Composition containing chitosan for sustained drug release

Details Composition containing chitosan for sustained drug release Composition containing chitosan for sustained drug release

A - Human Necessities

61

K

A61K 9/00 (2006.01) A61K 47/36 (2006.01)

Patent

CA 2598364

The present invention relates to a composition for sustained drug release, comprising chitosan dissolved in a solvent having a pH of below about 4.0, wherein the chitosan is selected from the group of chitosans precipitating in a pH range of between about 3.0 and about 7.5; and at least one drug compound soluble in the above chitosan solution.

L~invention concerne une composition pour une libération prolongée de médicament, comprenant du chitosane dissous dans un solvant dont le pH est inférieur ou égal à 4,0 environ. Ce chitosane est sélectionné dans le groupe de chitosanes dont le précipité tombe dans une fourchette pH allant de 3,0 environ à 7,5 environ ; et au moins un composé médicamenteux soluble dans ladite solution de chitosane.

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