Stomach Tonic is based on the Xiang Sha Yang Wei Decoction from Gong Tingxian’s “Revise Diseases and Return to Health” published in the Ming Dynasty in 1615 AD. It has the effect of warming Stomach and regulating Stomach Qi and is therefore used for indigestion problems. Indications include stomach-ache, distension after eating, poor appetite, loose stools and fatigue, uncomfortable fullness, noisy discomfort etc. caused by inadequate Stomach Yang, Dampness and Stagnation of Qi.