板蓝根是十字花科植物菘蓝的干燥根。性味苦、大寒。有些地区也有将爵床科植物马兰的根及大青的根作为板蓝根入药的。多种治疗感冒的中成药如感冒退热冲剂、抗感冒片等都含有板蓝根。 这其中的主要原因是:板蓝根内含有多种化学成分,如芥子甙、一种吲哚醇的甙以及靛红、β—谷甾醇等,并含精氨酸、γ—氨基丁酸等,具有清热解毒、利咽喉的功能。板蓝根的煎剂对革兰氏阳 Radix is ​​the dry root of indigo, a cruciferous plant. Sex bitter and cold. In some areas, the roots of Malanaceae and the roots of Daqing are also used as Radix. A variety of Chinese medicines for the treatment of colds, such as cold fever granules and anti-cold patches, contain Radix isatidis. The main reasons for this are: Radix Isatidis contains a variety of chemical components, such as mustard medlar, a sterol glycoside, and eosin, β-sitosterol, etc., and contains arginine, γ-amino butyric acid, etc. Qingrejiedu, Lee throat function. Radix Decoction Against Gram-positive