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:
Bitter,
sweet and slightly warm.
Meridian:
Lung
Functions:
To resolve phlegm and stop cough
Indications and Combinations:
Cough:
a)Cough
due to invasion by exogenous pathogenic factors manifested as cough with
profuse sputum.
*Use with Schizonepeta
(Jing jie) and Swallowwort (Bai qian).
b)Cough
due to deficiency of the lungs manifested by scanty sputum or with bloody
sputum.
*Use with
Anemarrhena
rhizome (Zhi mu), Tendrilled fritillary bulb
(Chuan bei mu) and Donkey hide
gelatin (E jiao) in the formula Ziwan Tang.