Isatis Root

Chinese Name	Banlangen
Latin	Radix Isatidis
English Name	Isatis Root
Key Characteristics	Herb that clears heat and eliminates toxin
Source	Dried root of Isatis indigotica Fort. (Fam. Cruciferae)
Property, Flavor and Meridians Entered	Bitter, cold; Heart and Stomach
Actions	To clear heat and eliminate toxin, cool blood, and ease the sore throat
Indications	Eruptive epidemic diseases with dark red or purplish tongue, mumps, pharyngitis, laryngitis, scarlet fever, carbuncles, erysipelas, in addition, used for acute laryngitis, upper respiratory tract infection, acute hepatitis, condyloma acuminatum, acute conjunctivitis and keratitis
Precaution	It is forbidden to give to patients with cold and deficiency in the spleen and stomach
Chemical Composition	It contains indigo, indirubin, etc.