About Yan Hu Suo
TCM analgesic herb (Corydalis yanhusuo) containing alkaloids such as dehydrocorybulbine (DHCB). Analgesic activity is shown mainly in animal/preclinical studies; robust human RCTs are lacking.
What Yan Hu Suo supports
- Traditionally used for pain relief — supported mainly by preclinical data, no strong RCTs
Clinical evidence
Limited clinical evidence. Analgesic effects are chiefly preclinical; human RCT evidence is limited.
NIH Fact Sheet