Chronic superficial gastritis and chronic atrophic gastritis are two kinds of diseases, the difference between them is that there is no atrophy of the gastric mucosa, at present there is no drug for atrophic gastritis that can effectively reverse the atrophy of the gastric mucosa. For these two kinds of gastritis, mainly for the patient’s clinical manifestations of the drug, there are the following three types of drugs: 1, inhibit gastric acid secretion of drugs, such as proton pump inhibitors, such as omeprazole enteric-coated capsules. 2, to protect the gastric mucosa of the drug, such as magnesium aluminium carbonate tablets, aluminum phosphate gel. 3, to promote the gastrointestinal tract power of the drug, such as Trimethoprim maleate.