Cangzhu dose dependently incresed the resting tension of fundic and bodied smooth muscle strips in rat, the effect was inhibited by atropine, hexamethonium and verapamil.

• 苍术水煎剂可增高大鼠胃底和胃体平滑肌条的张力，并呈一定的剂量效应关系。阿托品、六烃季胺和异搏定可不同程度地阻断苍术对胃平滑肌条的兴奋作用。