Sijunzi decoction (Decoction of four noble ingredients) is an original formula for invigorating Qi. Though it was firstly recorded in volume 3 of Taiping Huimin Hejiju Fang (Benevolent Prescriptions from Taiping Pharmaceutical Bureau), Sijunzi decoction is a different name of BaiZhu decoction (Rhixoma Atractylodis Macrocephalae Decoction) which is in volume 80 of Shengjizonglu (The Complete Record of Holy Benevolence). It is a basic prescription of invigorating Qi. From which lot of prescriptions in later a...