Chronic gastroenteritis commonly used drugs are antispasmodic and analgesic drugs, gastric mucosa protection or antacid drugs, gastric motivation drugs, intestinal probiotics, you need to follow the doctor’s advice to choose the right drug. 1. Antispasmodic and analgesic drugs: atropine, scopolamine, etc., suitable for severe abdominal pain. 2. Gastric mucosal protection or antacid drugs: gastric mucosal protection agents such as magnesium aluminum carbonate, gefalconate, etc., antacids such as omeprazole, ranitidine, etc., mostly used for epigastric pain, vomiting and other symptoms of obvious patients. 3. Gastric stimulant drugs: domperidone, mosapride, etc., mostly used for the symptoms of epigastric fullness. 4. Intestinal probiotics: for the intestinal flora dysbiosis caused by, need to supplement probiotics, such as bifidobacteria. However, it should be noted that the medication must be used under the guidance of a doctor, not self-medication.