Taking omeprazole, domperidone, bismuth potassium citrate, and compound pancreatic enzyme dispersion all have therapeutic effects on stomach disorders. There are more kinds of stomach diseases, and the treatment is based on drugs as the main treatment method. When choosing drugs, you should select the appropriate drugs according to the symptoms. Some people’s stomach diseases are caused by excessive secretion of stomach acid, so they need to use drugs that inhibit the secretion of stomach acid, such as omeprazole. Some people suffer from stomach diseases mainly because the protective barrier of gastric mucosa is damaged and the ulcer surface of the stomach wall appears, so they need to use drugs that protect the gastric mucosa and promote the repair of gastric mucosa, such as bismuth potassium citrate. Stomach diseases are caused by insufficient secretion of digestive juices and inability to digest food, and need to be treated with compound pancreatic enzyme dispersion.