Rifaximin may expel gas from the stomach. Rifaximin inhibits bacterial fermentation in the intestines , and can treat flatulence caused by bacterial infections that result in digestive disorders. Rifaximin is a broad-spectrum intestinal antibiotic that inhibits bacterial RNA synthesis by irreversibly binding to the β-subunit of bacterial DNA-dependent RNA polymerase, ultimately inhibiting bacterial protein synthesis and acting as a bactericide. The binding of rifaximin to the enzyme is irreversible. This product has the same broad antibacterial spectrum as rifamycin, and is bactericidal against infections of most Gram-positive and Gram-negative bacteria, including aerobic and anaerobic bacteria. Since the product is not absorbed into the gastrointestinal tract, it exerts its antibacterial effect locally by killing intestinal pathogens. Rifaximin is mainly used to treat intestinal infections, for patients with abdominal distension due to enteritis, it can play a significant role in reducing the purpose, but not for more than one abdominal distension can be other effects, for intestinal obstruction, severe intestinal ulcerative lesions are prohibited. Rifaximin may be able to expel the gas in the stomach, but may not be able to solve all the patients with abdominal distension, the causes of abdominal distension in addition to intestinal infections, there are many other causes of abdominal distension, if the abdominal distension is obvious, it is recommended to consult a doctor in a timely manner, to clarify the cause of the disease, and actively treat it, to avoid self-medication, and to avoid misunderstanding the condition.