The present invention provides a controlled release composition showing release of an active ingredient (proton pump inhibitor) controlled in two or more steps at different release rates, which contains 1) a release-controlled part A capable of controlling release of the active ingredient to occur at a predetermined rate, 2) a release-controlled part B capable of controlling release of the active ingredient to occur at a predetermined rate lower than the release rate of the release-controlled part A, and where necessary, 3) a release-controlled part C capable of controlling release of the active ingredient to occur at a predetermined rate faster than the release rate of the release-controlled part B, wherein the release of the active ingredient from the release-controlled part B precedes the release of the active ingredient from the release-controlled part A (when release-controlled part C is contained, the release of the active ingredient from the release-controlled part C precedes the release of the active ingredient from the release-controlled part B).
本发明提供了一种控制释放组合物,该组合物显示出活性成分(质子泵
抑制剂)在不同的释放速率下控制释放,其中包括1)能够控制活性成分以预定速率释放的释放控制部分A,2)能够控制活性成分以比释放控制部分A更低的预定速率释放的释放控制部分B,必要时还包括3)能够控制活性成分以比释放控制部分B更快的预定速率释放的释放控制部分C,其中活性成分从释放控制部分B的释放先于从释放控制部分A的释放(当包含释放控制部分C时,从释放控制部分C的释放先于从释放控制部分B的释放)。