PROBLEM TO BE SOLVED: To provide an oral administration medicine (in particular, a film-shaped oral administration medicine) having improved easiness and safety in taking the agent.SOLUTION: The oral administration medicine 1d has a plurality of drug-containing layers 11 containing the medicine(s) to be administered and water-swellable gel-forming layers 12 not containing the medicine(s) and containing a water-swellable gel-forming agent(s). In the oral administration medicine 1d, the medicine-containing layers 11 are thermally fused each other via an intermediate layer 13 containing a thermally fusible adhesive, and the water-swellable gel-forming layers 12 are provided on the outermost layers of the oral administration medicine 1d.COPYRIGHT: (C)2012,JPO&INPIT【課題】服用の容易性及び安全性を向上させた経口投与剤(特にフィルム状の経口投与剤)を提供する。【解決手段】複数層の投与すべき薬物を含有する薬物含有層11と、その薬物を含有せず水膨潤性ゲル形成剤を含有する水膨潤性ゲル形成層12とを有する経口投与剤1dであって、薬物含有層11同士が、熱融着可能な接着剤を含む中間層13を介して熱融着されており、水膨潤性ゲル形成層12が、経口投与剤1dの最外層に設けられている経口投与剤1d。【選択図】 図4
