<;P>;PROBLEM TO BE SOLVED: To provide a pharmaceutical composition transferring the orally or enterally administered bioactive proteins from the intestinal tract to blood, and thereby enabling oral or enteral administration of bioactive proteins so as to enable to provide medicines much improving patient pain and inconveniences. <;P>;SOLUTION: The pharmaceutical composition transferring the orally or enterally administered bioactive proteins from the intestinal tract to blood is provided, which pharmaceutical composition comprises bioactive proteins and amphiphilic peptides as ingredients. <;P>;COPYRIGHT: (C)2008,JPO&INPIT