Flat Stomach Pill is suitable for people who are related to the symptoms of dampness in the spleen and stomach. It is a traditional Chinese medicine composed of Atractylodes macrocephala, Pericarpium Citri Reticulatae and Radix et Rhizoma Glycyrrhizae Praeparatae. It has the effect of drying dampness and strengthening the spleen, and also has the effect of relaxing the chest and eliminating flatulence. Therefore, it can be used to treat the symptoms of dampness in the spleen and stomach, distension and fullness in the epigastrium (abdomen), as well as nausea and vomiting. In the formula, Atractylodes macrocephala dries dampness and transports the spleen, Atractylodes macrocephala regulates qi and removes dampness, Pericarpium Citri Reticulatae regulates qi and harmonizes the stomach to resolve phlegm, Radix Glycyrrhiza Glabra benefits qi and neutralizes the middle Jiao (tonifying qi and regulating the spleen and stomach), and supplemented with Jujubes and Ginger to tonify spleen and harmonize the stomach. The adverse effects and contraindications of Pingtu Pill are not clear. Precautions include avoiding cold and greasy food. In addition, caution should be exercised for allergy sufferers. Before taking this medicine, you need to be guided by a doctor to identify the evidence, and you should not take the medicine on your own, so as not to cause adverse effects on the body.