旱莲草又名黑墨草、墨旱莲、白花蟛蜞草等,是菊科植物鳢肠的干燥全草。其味甘酸,性寒。含有旱莲草素、鞣质、维生素A等,其中维生素A含量为0.0728％。由于旱莲草含有以上成分,除具有良好的止血、凉血效能外,还有养肾阴、乌须发的作用。临床常用量为1钱半至5钱。现将其临床应用分述如下: Eclipta prostrata, also known as black ink grass, Eclipta herba, Houttuynia cordata, etc., is a dried whole plant of Asteraceae plant. Its sweet and sour, cold. Contains Eclipta, tannin, vitamin A, etc., in which vitamin A content is 0.0728%. Since eclipse grass contains the above ingredients, it has the effect of nourishing kidney yin and blackhead hair as well as having good hemostasis and cooling blood. The clinically used amount is 1 half to 5 money. The clinical application is now described as follows: