There are many medications for treating too little stomach acid, commonly used to promote gastrointestinal power to help stomach acid secretion, such as domperidone, or pepsin and other digestive enzymes to help digestion to promote gastric acid secretion. 1. Promote gastrointestinal power class: such as domperidone, itopride, mosapride and other drugs can be used to treat gastric acid secretion caused by insufficient gastrointestinal power. Dry mouth, headache, vomiting, abdominal pain, diarrhea, skin rash and other uncomfortable symptoms may occur after use. 2. Digestive enzymes: drugs such as pepsin, compound digestive enzymes, and mitomycin pancreatic enzyme tablets can be used to treat low gastric acid secretion caused by indigestion. Belching (burping), nausea, bloating, vomiting and other symptoms may occur after use. All the above medicines should be used under the supervision of a doctor. If you are suffering from low stomach acid secretion, it is recommended that you visit a hospital as soon as possible and take appropriate measures under the supervision of a doctor.