Isatis Leaf (Da Qing Ye)

大青葉

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

Therapeutic Effects:
To clear heat and release toxins

Indications:
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.