Radix Bupleuri is pungent, bitter and slightly cold; it passes through liver, gallbladder and lung. Its functions include dispersing heat, relieving Qi stagnancy in liver, lifting the Yang-qi. It is mainly used for such symptoms as cough and fever, alternate spells of fever and chill, painful distension over hypochondrium, abnormal menstruation, prolapse of uterus and archoptosis. It is an important medicine for treating Shaoyang symptom.