汉方药,大多是制成煎剂后服用,因此,仅以热水提取出的成分显示其药效作用。另外,生药的成分研究.多是以甲醇等有机溶媒提取后,对脂溶性成分详细地进行研究。但是这些脂溶性成分,用热水能提取出多少却不清楚。本项研究中,取5种生药(泽泻、黄芩、山栀子、缩砂仁、苏叶),以热甲醇与热水提 Kampo medicine is mostly taken after decoction, so only the ingredients extracted with hot water show its efficacy. In addition, the components of crude drugs are mostly extracted from organic solvents such as methanol, and the fat-soluble components are studied in detail. However, it is unclear how much of these fat-soluble ingredients can be extracted with hot water. In this study, five kinds of crude drugs (Azalea, Radix Astragali, Radix Astragali, Astragalus membranaceus, and Suye) were taken as hot methanol and hot water.