Chai Hu Jia Long Gu Mu Li Tang by Blue Poppy’s Great Nature Classics is a formula that comes from Zhang Zhong-jing’s late Han dynasty Shan Han Lung.
Dang Shen (Radix Codonopsis), Fu Ling, Ban Xia, Sheng Jiang, Gui Zhi, and Da Zao (Fructus Jujubae), fortify the spleen and supplement the qi. In this case, Gui Zhi warms the spleen and, therefore, helps to supplement the spleen.