[Use of crude drugs in "PiWeiLun" in comparison to those used in "NeiWaiShangBianHuoLun".].

PiWeiLun (Hi-i-ron in Japanese) is a traditional Chinese medical formulary written in the 13th century that discusses endogenous disease. For curing endogenous diseases (Naisho) caused by functional deficiency of pi- and wei qi (Hi-I-Ki-Kyo), PiWeiLun was recommended for QingShuYiQi-Tang (Seisho-ekki-to), Ban-XiaBaiZhuTianMaTang (Hange-byakuju-tsu-tenma-to) and BuZhongYiQiTang (Ho-chu-ekki-to), which are described in NeiWaiShangBianHuoLun (Naigaisho-benwa-ku-ron).A characteristic of PiWeiLun is that it discusses combining the use of Phellodendri Cortex with sweet Qi-tonics (Hoki-yaku) as Ginseng and Atractylodis Macrocephalae Rhizome for improving false heat syndrome (Kyo-netsu) due to yin-deficiency (In-kyo). In PiWeiLun Cimicifugae Rhizome, Angelicae Radux and Atractylodes Rhizome are more frequently used than in NeiWaiShangBianHuoLun.The use of drugs presented in PiWeiLun may be useful to devise new crude drug formulations good for modern deficiency syndrome experienced by persons having post-operative complications.