“八大宛药”是指在南阳境内生产的山莱萸、辛夷、桔梗、丹参、半夏、杜仲、栀子、天麻八味道地药材。探讨其四性的作用及变化规律,以便为进一步综合评定“八大宛药”临床疗效提供文献依据。1、山茱萸:《神农本草经》列为中品。无论从山茱萸四性的直接描述,还是医家对其功效主治的阐述,大多数人都认为山茱萸“微温”。“主平”说始于《本经》,历代医家多有从者,尤以明清为多,以《本草纲目》为代表。从主治功效来看,持“主平”说者也认为山茱萸药性是“平而偏温”。认为“大热”的医家 “Eight Da Wan medicine ” refers to the production of Sanlaiyuanyi, Magnolia, Campanulaceae, Salvia, Pinellia, Eucommia, Gardenia, Tianma eight taste medicine. To explore the role of the four characters and changes in order to provide a literature basis for further comprehensive evaluation of the clinical efficacy of “eight Da Wan medicine.” 1, dogwood: “Shen Nong’s Materia Medica” as a product. No matter from the direct description of the four fields of dogwood, or physicians to explain the efficacy of its indications, most people think that dogwood “tepid ”. “The main flat ” said that in the “Classic”, there are many followers of ancient physicians, especially in the Ming and Qing dynasties as more, with “Compendium of Materia Medica” as the representative. From the attending efficacy point of view, holding “main flat ” say that the dogwood medicine is “flat and partial warm ”. Think “hot” physician