Patent ID: 8747893
Filing Date: 2014-06-10
Classification: A61K,A61P,C12Y

Abstract:
1. A capsule for delivering a main agent to a large intestine, comprising: an inner layer that includes a composition comprising the main agent, and a shell that is an outermost layer of the capsule, wherein the shell comprises a natural water-soluble polymer matrix as a shell base material and a chitosan powder that is dispersed within the natural water-soluble polymer matrix, wherein the natural water-soluble polymer matrix comprises a first natural water-soluble polymer that is at least one selected from the group consisting of gelatin, carrageenan, starch, agar, pullulan, modified starch, alginic acid and mannan and a second natural water-soluble polymer that is at least one selected from the group consisting of pectin, gellan gum and cardlan, wherein the first water-soluble polymer is present in an amount of 1 to 98%, the second natural water-soluble polymer is present in an amount of 1 to 24%, and the chitosan powder is present in an amount of 1 to 27%, said amounts being based on the total weight of a dried shell.