PROBLEM TO BE SOLVED: To provide an antidiabetic agent exhibiting excellent inhibitory action of activity of &alpha-glucosidase (disaccharide hydrolase), having high safety and derived from an inexpensive plant.SOLUTION: This prophylactic and therapeutic agent for diabetes mellitus comprises powder of a plant belonging to the genus Paris of the family Liliaceae and/or the extract thereof.COPYRIGHT: (C)2003,JPO【課題】優れたα-グルコシダーゼ(二糖類加水分解酵素)の活性阻害作用を示し、安全性が高く、安価な植物由来の抗糖尿病剤を提供することを目的とする。【解決手段】ユリ科ツクバネソウ属植物の粉末及び/又は抽出物からなる糖尿病の予防及び治療剤。
