zixue san

Zixue San is a traditional Chinese medicine (TCM) formula produced by Tianjin Hong Ren Tang Pharmaceutical, categorized as a heat-clearing and wind-extinguishing medication. It is historically recognized as one of the "Three Treasures of Cooling" (凉开三宝) in TCM, used to treat critical conditions involving high fever and neurological impairment. The formula is indicated for high fever, convulsions, delirium, and loss of consciousness, often associated with severe infections or "heat entering the pericardium" in TCM theory. It works by clearing internal heat, detoxifying the body, and calming the spirit. The preparation is typically a reddish-brown to grayish-brown powder with a fragrant odor and a cool, slightly bitter taste. Modern formulations are standardized to ensure safety and efficacy while often substituting endangered animal components with sustainable alternatives.

Brand names

Zixue San

Other names

紫雪散Zixue PowderPurple Snow Powder