经方合方应用的目的是为了适应更为复杂的病证。因临证所见的复杂病证远多于单一病证,故合方应用的机会也远多于单一方。合方应用源于《伤寒论》,书中共有3首合方,即桂枝麻黄各半汤、桂枝二越 The purpose of the prescription is to adapt to the more complex disease syndromes. Due to the complex evidence seen syndromes far more than a single disease card, so the chances of parties are far more than a single party. Application of the parties derived from “Treatise on Febrile Diseases”, the book a total of three parties, that Guizhi ephedra half soup, Gui Ci Er Yue