The source is from the root and rhizome of the perennial trailing shrub, Clematis chinensis Osbeck. or C. hexapetala Pall. or C. manshurica Rupr., family Ranunculaceae. The medicinal material is mainly produced in Jiangsu, Anhui and Zhejiang provinces, etc.. Dug and collected in autumn, cleaned, dried in the sun and the crude one may be used.

Medicinal Properties: Pungent and salty in flavor, warm in nature and attributive to the bladder meridian.

Actions: Expel wind and dampness, dredge the channel and remove fishbone stuck in the throat.

Application
1. It is indicated for pain of Bi-syndrome of wind-dampness type, especially migratory Bi-syndrome due to preponderant wind, which is manifested as soreness and pains of general joints, tendons and bones which are wandering, it is powdered alone and then mixed with wine for being used or combined with Danggui (Radix Angelicae Sinensis ) , Guizhi ( Ramulus Cinnamomi ), Fangfeng (Radix Saposhnikoviae ) , Chuanxiong (Rhizoma Chuanxiong), and Jianghuang ( Rhizoma Curcume Longae ), etc..
2. For fishbone stuck in the throat, its decoction to which sugar and vinegar is added is slowly swallowed in for several times. The decoction is also taken orally to treat sore throat.

Usage and Dosage:
5 – 10g is used in decoction for oral use and 30-50 g for fishbone stuck in the throat.