Modern research on leonurus showed that it has excitation to the female animal's uterus isolated or in vivo which is not据研究，益母草无论对离体、在位及整体不麻醉动物的子宫皆有兴奋作用，子宫的振幅、收缩率、紧张度，无论已孕或未孕均见增加，持续时间颇久。