The application of ursodeoxycholic acid, omeprazole, bismuth potassium citrate and other drugs is effective in bile reflux gastritis. 1. Ursodeoxycholic Acid: Ursodeoxycholic Acid is a bile therapeutic drug for gallbladder cholesterol stones, cholestatic liver disease, bile reflux gastritis and other diseases. Adverse reactions such as abdominal pain and diarrhea may occur after use. Acute cholecystitis, cholangitis, bile duct obstruction and so on are prohibited. 2. Omeprazole: Omeprazole is a proton pump inhibitor, which can be used in the treatment of gastric ulcer, duodenal ulcer, reflux gastropathy and so on. Adverse reactions such as headache, diarrhea and nausea may occur after taking it. Allergic persons, persons with severe renal insufficiency and infants are prohibited. 3. Bismuth potassium citrate: Bismuth potassium citrate is a gastric mucous membrane protection drug, which can be used in the treatment of gastritis. Adverse reactions such as nausea, constipation and black stool may occur after use. It is forbidden for patients with severe kidney disease and pregnant women. All of the above drugs should be applied under the guidance of physicians, and should not be used without authorization.