广效利尿胶囊是以益母草等中药制成的复方制剂 ,具有养血活血、化气利水作用 ,主治一切水肿症。其主药为益母草 ,药理研究证明 ,益母草提取物具有改善微循环、增加尿量等作用。本文采用薄层色谱扫描法测定其主药益母草中水苏碱的含量 ,经方法学验证 ,盐酸水苏碱在４ｕｇ～２０ The wide-active diuretic capsule is a compound preparation made from traditional Chinese medicine such as Motherwort. It has the functions of nourishing blood, promoting blood circulation, replenishing qi and diuresis, and attending to all edema disorders. Its main drug is Motherwort, and pharmacological studies have shown that Motherwort extract can improve microcirculation and increase urine output. In this paper, the content of statosine in the main drug Leonurus was determined by thin-layer chromatography. After the method validation, the content of stachydrine hydrochloride was 4ug～20.