Isatis leaf (Daqingye)
Pharmaceutical Name: Folium Isatidis
Botanical Name: Isatis indigotia Fort.
Common Name: Isatis leaf
Source of Earliest Record: Mingyi Bielu
Part Used: The leaves are gathered in summer or autumn and dried in the sun.
Natural Properties & Taste: Bitter and very cold
Meridians: Heart, lung and stomach
To clear heat and release toxins
1. Sore throat, erysipelas, boils, carbuncles and furuncles. Isatis leaf (Daqingye) is used with Scrophularia (Xuanshen) and Honeysuckle flower (Jinyinhua).
2. High fever with maculopapule. Isatis leaf (Daqingye) is used with Moutan bark (Mudanpi).
Dosage: 10-15 g
Cautions & Contraindications: This herb is contraindicated in cases with weakness and cold in the spleen and stomach.