Illustrated Chinese Materia Medica by Jing-Nuan Wu;

Author:Jing-Nuan, Wu;
Language: eng
Format: epub
Publisher: Oxford University Press
Published: 2005-09-14T16:00:00+00:00

XUAN FU HUA

Inula japonica Thunb. (Fam. Asteraceae)

1. Branch with flowers; 2. Male flower; 3. Male flower; 4. Female flower; 5. Seed; 6. Root

PHARMACEUTICAL NAME

Radix Isatidis

ENGLISH NAME

indigo, woad root, isatis

PART USED

dried root

Radix Isatidis is produced mainly in the provinces of Jiangsu, Hebei, Henan, Shananxi, and Anhui. It is collected in autumn and dried in sunlight for use.

FLAVOR, PROPERTY, AND CHANNEL TROPISM

Bitter in flavor, cold in property, acts on the Heart and Stomach channels.

FUNCTIONS

Clears Heat and removes toxins, reduces Blood Heat, and soothes sore throat.

CLINICAL USE AND MAJOR COMBINATIONS

For fever and headache due to Wind Heat, it is used with Flos Lonicerae (Jin Yin Hua), Fructus Forsythiae Suspensae (Lian Qiao), and Herba Schizonepetae Tenuifolia (Jing Jie).

For swelling of the head caused by infection, it is used with Fructus Forsythiae Suspensae (Lian Qiao), Fructus Arctii (Niu Bang Zi), and Radix Scrophulariae (Xuan Shen), in “The Universal Relief Decoction for Detoxification” (Pu Ji Xiao Du Yin).

DOSAGE AND ADMINISTRATION

10–15 g, decocted in water, or used in pill or powder form for internal use.

PRECAUTIONS

None noted.

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