Stomach bloating is considered to be gastroenteritis, irritable bowel syndrome, gastritis, gastric cancer and other diseases, magnesium aluminum carbonate is mainly a gastric mucosal protective agent for stomach bloating slower onset of action, the effect is poor. When the patient has gastric distension, a large amount of gas accumulates in the stomach, gastrointestinal content digestion, absorption obstacles, patients with poor appetite, fatigue, poor mental state, magnesium aluminum carbonate is mainly a gastric mucosal protective agent, by attaching to the gastric mucosa, reduce the stimulation of gastric mucosa by gastric acid, reduce acid reflux, heartburn, stomach pain and other discomforts, but the effect of gastric distension is not good. When the patient has gastric distension, taking magnesium aluminum carbonate does not play a role in promoting gastrointestinal peristalsis and reducing the efficacy of gastric distension, therefore, gastric distension eating a few days of magnesium aluminum carbonate does not see the effect. In addition, the patient must consult a physician before using the drug, under the guidance of the physician for medication, not self-selected drugs for treatment.