There are many proprietary Chinese medicines for lowering stomach qi (stomach qi rises instead of falls), commonly used are Si Mu Tang Oral Liquid and Gastric Reversal Capsules. 1. Si Mu Tang Oral Liquid: It contains medicines such as Mu Xiang, Wu Yao, Citrus aurantium, betel nut, etc. It has the effect of smoothing down Qi and lowering its rebelliousness, eliminating accumulation and relieving pain (eliminating accumulation of stagnation and relieving pain). This medicine can be used to treat infantile milk and food internal stagnation syndrome, infantile milk and food internal stagnation syndrome and middle-aged and old-aged qi stagnation and food stagnation (food stagnation in the stomach due to indigestion) syndrome. This product should be contraindicated in pregnant women, postoperative digestive tract and patients with intestinal obstruction, intestinal tumors, etc. Adverse reactions are not clear. 2. Gastric Reversal Capsule: Containing Chai Hu, Paeonia lactiflora, Citrus aurantium, Pinellia ternata and other medicines, it has the efficacy of dredging the liver and draining heat, harmonizing the stomach and lowering the rebelliousness (regulating stomach qi and making the upward reversal of qi to descend). This drug can be used to treat the symptoms of chest and epigastric dystocia (pain in the area of the coarseness and ribs), epigastric distension and nausea (lack of appetite and reduced food intake), belching (hiccup), eructation (burping), and spitting out acid and noisy (a feeling similar to hunger and emptiness with burning in the stomach) caused by the evidence of liver-stomach disharmony (the disharmony of the liver’s ascending and the stomach’s descending), but should be used cautiously in cases of spleen deficiencies with loose stools (scanty and unshapely feces). The main manifestations of gastric qi upward reversal are vomiting, nausea, eructation, belching, etc., and its therapeutic use of drugs should be based on the patient’s own specific symptomatic manifestations, under the guidance of the physician’s diagnosis and selection, and should not be blindly self-medication.