Crataegus fruit demonstrates inhibition effect on hyperactive smooth muscles in rabbit duodenums while it slightly increases the contraction of relaxed smooth muscles in rat stomachs .

山楂对活动亢进的兔十二指肠平滑肌呈抑制作用，而对松弛的大鼠胃平滑肌有轻度的增加收缩作用。