An Evaluation of the Necessity to Distinguish Red Poria from White Poria in Soyangin Prescription

1. Objectives This Study is to find efficacy of Red Poria and White Poria used for Soyangin Prescriptions in Lee Je-Ma's writings. 2. Methods We analysed Soyangin Prescription with Poria in Dongyi Suse Bowon Chobonkwon(東醫壽世保元 草本卷) , Dongyi Suse Bowon Gabobon(東醫壽世保元 甲牛本) , Dongyi Suse Bowon Sinchukbon(東醫壽世保元 辛丑本) and Dongyi Sasang Sinpyun(東醫四象新編) based on the efficacy of Poria written in DongMugo YakSungGa(東武遺藁 藥性歌) . 3. Results and Conclusions 1) Red Poria and White Poria seems to be different in Sasang Constitutional Medicine. 2) Poria in Soyangin Prescription had used from the traditional medical point at the beginning, in Dongyi Suse Bowon Chobonkwon(東醫壽世保元草本卷) , but its usage was changing until Dongyi Suse Bowon Sinchukbon(東醫壽世保元辛丑本) as the point of Sasang Constitutional Medicine. 3. It is necessary to use Poria in Soyangin Prescription as the essence of Soyangin's life because it effects on the whole body without any distinction from body's upper part with lower part and body's exterior part with interior part.