桃核承气汤出自张仲景《伤寒论》治疗“太阳病不解热结膀胱,其人如狂,……少腹急结”的下焦蓄血,瘀热互结之太阳腑证。历代医家经临床验证,认为本方临床应用范围广泛,其疗效往往出人意料之外,多少年来久用不衰。日本汉方对桃核承气汤的研究应用也较广泛,现就汉方古今的研究应用概况简述如下: Taohe Chengqi Decoction comes from Zhang Zhongjing’s “Treatise on Febrile Diseases” treatment of “the sun disease is not the heat of the bladder, its people are mad, ... ... lower abdomen anxious knot,” the next coke deposits, and the heat of the sun knot each other. Historical doctors have been clinically verified that they have a wide range of clinical applications and their efficacy is often unexpected. It has been used for many years. The research and application of Taohe Chengqi Decoction in the Japanese Kampo is also extensive. Now the research and application of the ancient and modern Kampo are briefly described as follows: