1. TCM Wiki
  2. Knoxia Root

Knoxia Root

Hong Da Ji
1 #


Hong Da Ji (Knoxia Root)

  1. Hong Da Ji
  2. 红大戟
  3. Radix Knoxiae
  4. 紅大戟

The Effect of Knoxia Root


Bitter, cold, slightly toxic; lung, spleen and kidney meridians entered.


Counteract toxic pathogen, drive out accumulated water, resolve swelling and dissipate nodulation.


Scrofula, sores and boils, difficulty in urination and defecation, subcutaneous nodule, thoracic and abdominal effusion.

Dosage and Administrations

Decoct 1.5~3 g or take the powder, 0.3~1 g, or made into pill or powder, or soaked in wine. Proper dosage is for external application, pounded for applying or decocted for washing.


It is contraindicated to the weak and pregnant women.