Siler ( 防风 ) ...Chinese Herb...

Latin Plant Name

Ledebouriellae Sesloidis

Pinyin Mandarin Name

Fang Feng

Common English Name


Part of Plant Used



Slightly warm


Acrid, sweet

Meridians Entered

Bladder, Liver, Spleen

Common Usages

This herb is used in formulas to treat symptoms of skin eruptions, headache, chills, and body aches; swollen and achy joints and muscles with wandering joint pain; painful diarrhea and bright blood in the stools; and trembling of hands and feet and lockjaw symptoms when combined with specific other herbs (TCM: exterior wind symptoms; wind-damp symptoms; Intestinal wind symptoms; exterior wind).

Traditional Usages and Functions

Releases exterior and expels wind; expels wind dampness and alleviates pain; expels wind.

Common Formulas Used In

Clematis and Stephania; Cnidium and Tea; Qiang-Huo and Turmeric; Tu-Huo and Loranthus; Xanthium and Magnolia.

Processing Required




Cautions in Use

Do not use where there is deficient Blood with spasms or deficient Yin with heat signs.

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