The source is from the root of Saposhnikoviae divaricata (Turcz.) Schischk, family Umbelliferae. The medicinal material is collected in spring or autumn, dried in the sun and cut into pieces, generally, either crude one or carbonized one is used for medication.

Medicinal Properties:
Pungent and sweet in flavor, slightly warm in nature, and attributive to the bladder, liver and spleen meridians.

Actions:
Expel wind and relieve exterior syndrome, eliminate dampness, relieve convulsion and diarrhea.

Application
1. It can be used for exterior syndrome due to exogenous attack, whether the syndrome is caused by wind-cold or wind-heat or it belongs to exterior asthenia or exterior sthenia. It is most suitable to be used for exterior syndrome due to wind-cold, which is manifested as severe headache and general pain.
2. It is suitable for arthralgia of wind-cold-dampness, arthrodynia of the extremities and stiffness of tendon.
3. It is used for tetanus and infantile convulsion.