Pharmaceutical Name:

Radix Ledebouriellae

Botanical Name:

Ledebouriella divaricata (Turcz.) Hiroe

Common Name:

Ledebouriella root, Siler Root

Source of Earliest Record:

Shennong Bencao Jing

Part Used & Method for Pharmaceutical Preparations:

The roots is dug in spring and autumn, dried in the sun, soaked in water and cut into pieces.

Properties and Taste:

Pungent, sweet and warm

Meridian:

Lung, liver, spleen, and urinary bladder

Functions:

To release the exterior and expel wind
To expel wind-dampness and alleviate pain
To alleviate spasms.

Indications and Combinations:

1.    Wind-cold exterior syndrome manifested as fever, chills, headache, and general pain.
*Use with Schizonepeta (Jingjie) and Notopterygium root (Qianghuo).

2.     Wind-heat exterior syndrome manifested as fever, sore throat, red eyes, and headache.
*Use with Schizonepeta (Jingjie), Scutellaria root (Huangqin), Mentha (Bohe) and Forsythia fruit (Lianqiao).

3.     Wind-cold-damp bi syndrome manifested as joint pain (arthritis) and spasms of the limbs.
*Use with Ledebouriella root (Fangfeng) is used with Notopterygium root (Qianghuo) and Chinese angelica root (Danggui).

4.     Urticaria and itching of the skin.
*Use with Flavescent sophora root (Kushen) and Cicada slough (Chantui) in the formula Xiaofeng San.

Dosage:

3-10 g

Cautions:

This herb should be used with caution for spasms sue to blood deficiency, and is contraindicated for cases of deficient yin with heat signs.