Colonic drug delivery system

Drug – bio-affecting and body treating compositions – Designated organic nonactive ingredient containing other... – Carbohydrate or lignin – or derivative

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424451, 424456, 424458, 424461, 424474, 424479, 424489, 424493, 424499, 514960, 514965, A61K 948, A61K 964, A61K 936, A61K 950

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active

055256341

ABSTRACT:
A colonic delivery system for delivering a drug to the colon is provided. The system comprises a drug in combination with a matrix, wherein the matrix comprises a saccharide-containing polymer. According to the invention, the matrix is resistant to chemical and enzymatic degradation in the stomach and small intestine. The matrix is degraded in the colon by bacterial enzymatic action, and the drug is released. The system is useful for targeting drugs to the colon in order to treat colonic disease. The system is also useful for enteric administration of drugs such as proteins and peptides which are otherwise degraded in the stomach and small intestine.

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