“其力反折”语出沈括·《良方》自序。指出:“巴豆善利也,以巴豆之利为未足,而又益之以大黄,则其力反折。”作者认为巴豆长于泻利,若与大黄相伍,其泻利作用反而减弱。明·李时珍也承袭他的理论,提出“巴豆与大黄同用,泻人反缓,为其性相畏也。”故习医常常畏惧远之,那么这种观点是否正确,尚籍古今经验加以辨析。 1.从古今方剂剖析,二者同用增强疗效。汉·张仲景《金匮要略》三物备急丸,专治寒实冷积,心腹胀痛,痛如锥刺,大便不通等症所设。方以巴豆与大黄、干姜组成,用巴豆辛 “The power of refraction” is Shen Kuo’s “Reason” preface. He pointed out: “The Croton is good, too, but the benefit of Croton is not enough, but it is also benefited from rhubarb, but its strength is reversed.” The author thinks that Croton grows longer than Xia Li. If he associates himself with rhubarb, his laxative effect will weaken. Ming Li Shizhen also inherited his theory and proposed that “crotons and rhubarb are used together, and that people who are diarrhea are reluctant to fight back. They are afraid of their own abilities.” Therefore, medical practitioners often fear fears. If this view is correct, it is a matter of past and present experience. Discrimination. 1. Analyze the ancient and modern prescriptions and use them together to enhance the therapeutic effect. Han Zhang Zhongjing’s “Golden Chamber” is a three-prepared emergency pill that cures severe cold and cold, accumulates pain, pain, such as cone acupuncture, and does not pass through embolism. Formulated with croton, rhubarb, ginger, and Croton