Bupleurum is a traditional Chinese herb dating back to the first century BC and is one of the most commonly used herbs in traditional Chinese medicine. One of China's harmony herbs purported to affect organs and energy in the body, bupleurum has been used as a liver tonic, with spleen and stomach toning properties. The plant has also been used to promote perspiration and treat fever, flu, distending pain in the chest, and menstrual disorders. Bupleurum is being investigated for its antipyretic, immunomodulatory, GI tract, and hepatic-protective effects, as well as its potential in the prevention and treatment of abnormal cell growth. The FDA has not approved of any of these statements and you are taking this herb at your own risk.