中药淡竹叶为禾本科植物淡竹叶(Lophatherum gracileBrongn)的干燥茎叶。资源十分丰富,全国各地都有栽培,主产于江苏、浙江、江西、广西、湖南,福建等地,具有清热除烦、利尿之功,多用于热病烦渴、口舌生疮、小便赤色淋痛等症[1]。现代研究证明,淡竹叶主要含有黄酮类 Light bamboo leaves of Chinese herbal medicines for the light of the grass leaves (Lophatherum gracile Brongn) dry stems and leaves. Resources are very rich, all over the country have cultivation, the main production in Jiangsu, Zhejiang, Jiangxi, Guangxi, Hunan, Fujian and other places, with heat removal annoying, diuretic power, and more for fever, thirst, tongue sore, Pain embolism [1]. Modern research shows that light bamboo leaves mainly contain flavonoids