Stomach upset and vomiting more than may be chronic gastritis, gastric ulcer and other diseases, can follow the doctor’s advice to take omeprazole enteric-coated tablets, domperidone tablets, mosapride citrate tablets and so on. 1. Omeprazole enteric-coated tablets, an acid suppressant, can relieve the symptoms of gastric discomfort and vomiting by inhibiting the secretion of gastric acid and reducing the stimulation of gastric mucosa by gastric acid, but some people will have nausea, diarrhea, abdominal pain, constipation, gastrointestinal flatulence and other discomforts after taking them. Infants and young children, severe renal insufficiency are prohibited to use this drug, lactating and pregnant women should be cautious. 2. Domperidone Tablets, a gastrointestinal stimulant, can promote gastric emptying to relieve dyspepsia, belching (hiccups), abdominal distension, nausea, vomiting and other discomforts. Its occasional adverse reactions are dry mouth, headache, insomnia, nervousness, dizziness and drowsiness. People with intestinal bleeding, perforation, and mechanical obstruction should avoid taking it. Pregnant women, lactating women, and children should use this drug with caution. 3. Mosapride citrate tablets, a digestive tract stimulant, is indicated for people with functional dyspepsia, which may be accompanied by belching, heartburn, vomiting, nausea, epigastric distension and other symptoms. Its adverse reactions are mainly abdominal pain, diarrhea, rash, dry mouth, lethargy and dizziness. It should be contraindicated in people with gastrointestinal bleeding, intestinal obstruction or perforation, and should be used with caution in pregnant women, lactating women and children. Warm reminder: if the stomach upset nausea more than, can not self-medication, need to consult a doctor in a timely manner, according to the condition of the selection of suitable drugs.