Longdanxiegan decoction had recorded in many literatures and the earliest from the Taipinghuimin agent bureau according to Wang Ang's record,the main function Longdanxiegan decoction is clear and discharge the liver fire and liver classics damp and hot,the indications of Longdanxiegan decoction is liver fire on inflammation and liver classics damp and hot bet.Longdanxiegan decoction is widely used in many clinical departments,treatment of the disease and syndrome of hepatobiliary hard fire,in recent years,research and application of Longdanxie...