Abstract
1. Objectives: The purpose of this study is to understand the origin, changes and the constructive principles of Hyangsayangyitang (XiangShaYangWeiTang). 2. Methods: Hyangsayangyi-tang and other related prescriptions were analyzed in terms of pathology, based on "Donguibogam(東醫寶鑑)", "Donguisusebowon Chobongwon(東醫壽世保元 草本卷)", "Donguisusebowon Gabobon(東醫壽世保元 甲午本)", "Donguisusebowon Sinchukbon(東醫壽世保元 辛丑本)". 3. Results and Conclusions: (1) The origin of Hyangsayangyi-tang is Hyangsayukgunja-tang from "Gongshin Uigamseo(龔信 醫鑑書"). Hyangsayangyi-tang inherited some of the principles from"Euihangangmok(醫學綱目)" Jeonssiyigong-san's (全氏異功散) application. (2) "Gabobon(甲午本)"'s prescription emphasizes the effect of lossen up by using Pogostemonis Herba(藿香). "Sinchukbon(辛丑本)"'s prescription emphasizes the effect of warm up stomach by using Zingiberis Rhizoma(乾薑). (3) Ginseng Radix(人蔘), Atractlodis Rhizoma White(白朮), Glycyrrhizae Radix(甘草), Paeoniae Radix Alba(白芍藥) support Soeumin's spleen root (脾元), and Zingiberis Rhizoma(乾薑), Myristicae Semen(肉豆蔲) warm up stomach, and Pinelliae Rhizoma(半夏), Citri Pericarpium(陳皮) circulate Qi, Crataegi Fructus(山楂), Amomi Fructus(砂仁), Cyperi Rhizoma(香附子) encourage digestion to maintain descending Yin.