Ping Stomach San is used to treat the syndrome of Dampness Stagnation in the Spleen and Stomach, in which the patient’s main symptoms are distension and fullness in the epigastrium (abdomen), not wanting to eat, soreness and heaviness in the limbs and so on. Ping Stomach San is composed of Cangzhu, Houpu, Chenpi and Licorice. It has the effects of drying dampness and transporting the spleen, moving qi and harmonizing the stomach (regulating the stomach and internal organs by promoting the operation of qi). It is used for symptoms such as not thinking about food, vomiting and nausea, belching (hiccup) and acid swallowing, idleness and sleepiness. It should be noted that it is not suitable to take tonic Chinese medicine at the same time during the period of taking the medicine; it is not suitable for people with stomach yin deficiency, which is manifested as dry mouth and desire to drink, dryness of stools, shortness of urine; people with high blood pressure, heart disease, liver disease, diabetes mellitus, renal disease and other chronic diseases should take it under the guidance of a physician. Ping Stomach San belongs to the basic formula, but can not be taken on its own, need to be used under the diagnosis and treatment of traditional Chinese medicine practitioners.