Part Used & Method for Pharmaceutical Preparations:
The roots, or rhizomes, are dug in spring or autumn. Then they are
cleaned, dried in the sun and cut into pieces.
Properties and Taste:
sweet and slightly warm.
To resolve phlegm and stop cough
Indications and Combinations:
due to invasion by exogenous pathogenic factors manifested as cough with
*Use with Schizonepeta
(Jing jie) and Swallowwort (Bai qian)
due to deficiency of the lungs manifested by scanty sputum or with bloody
rhizome (Zhi mu), Tendrilled fritillary bulb
(Chuan bei mu) and Donkey hide
gelatin (E jiao) in the formula Ziwan Tang.