Colonic drug delivery composition

A - Human Necessities – 61 – K

Patent

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Details

A61K 9/48 (2006.01)

Patent

CA 2193481

A colonic drug delivery composition is provided and comprises a starch capsule containing a drug, the starch capsule being provided with a coating such that the drug will only be released from the capsule in the colon. The coating may be a pH-sensitive material, a redox-sensitive material or a material broken down by specific enzymes or bacteria present in the colon. The drug to be delivered may be one for local action in the colon, or a systemically active drug to be absorbed from the colon.

Une composition conçue pour administrer un médicament dans le côlon comprend une capsule d'amidon contenant un médicament, cette capsule d'amidon étant pourvue d'un revêtement de sorte que le médicament soit uniquement libéré de la capsule au côlon. Le revêtement peut être un matériau sensible au pH, un matériau sensible à l'oxydoréduction ou un matériau décomposé par des enzymes ou des bactéries spécifiques présentes dans le côlon. Le médicament à administrer peut être soit un médicament destiné à avoir une action locale dans le côlon, soit un médicament à action systémique qui sera mieux absorbé dans le côlon.

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