Materia Medica - Important
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Radix Euphorbiae seu Knoxiae
1. Euphorbia pekinesis Rupr.; 2. Knoxia valerianoides Thorel et Pitard
Euphorbia root, Peking spurge root
Source of Earliest Record
Shennong Bencao Jing
Part Used & Method for Pharmaceutical Preparations
The roots are dug in autumn or spring. After the fibrous roots have been removed, the roots are cleaned and dried in the sun, and then they are soaked in vinegar.
Properties & Taste
Bitter, pungent, cold and poisonous
Lung, kidney and large intestine
1. To transform water and reduce edema; 2. To disperse nodules and relieve swelling
Indications & Combinations
1. Edema of the face and the body, retention of fluid in the chest and ascites. Peking spurge root (Daji) is used with Jujube (Dazao), Kansui root (Gansui) and Genkwa flower (Yuanhua) in the formula Shizao Tang.
2. Boils, carbuncles, scrofula and subcutaneous nodules. Peking spurge root (Daji) is used with Pleione rhizome (Shancigu) and Moleplant seed (Qianjinzi) for internal and external use in the formula Zijin Ding.
Cautions & Contraindications
This herb should not be mixed with Licorice root (Gancao), and it is contraindicated during pregnancy.
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