Pharmaceutical Name:

Folium Isatidis

Botanical Name:

Isatis indigotia Fort.

Common Name:

Isatis leaf

Source of Earliest Record:

Mingyi Bielu

Part Used & Method for Pharmaceutical Preparations:

The leaves are gathered in summer or autumn and dried in the sun.

Properties and Taste:

Bitter and very cold

Meridian:

Heart, lung and stomach

Functions:

To clear heat and release toxins

Indications and Combinations:

1.     Sore throat, erysipelas, boils, carbuncles and furuncles.
*Use with Scrophularia (Xuanshen) and Honeysuckle flower (Jinyinhua).

2.      High fever with maculopapule.
*Use with Moutan bark (Mudanpi).

Dosage:

10-15 g

Cautions:

This herb is contraindicated in cases with weakness and cold in the spleen and stomach.