Niu Xi

**Semantic type:** Pharmacologic Substance

**Definition:** A Chinese herbal medicine (CHM) composed of the dried root from the herbaceous plant Ox-Knee (Achyranthes bidentata Blume) belonging to the Amaranthaceae family. Niu Xi may regulate the blood, may help relieve certain pains, and it may tonify the liver and kidneys.

**Synonyms:** - ACHYRANTHES BIDENTATA ROOT - Achyranthes Root - Huai Niu Xi - Niuxi - Ox-Knee Root - Radix Achyranthis Bidentatae