What stomach medicine can not be eaten for a long time, after all, medicine is three parts poison. If long-term medication or overdose will harm the body, may appear liver function, kidney function damage, more commonly used gastric drugs are drugs that inhibit gastric acid secretion, such as proton pump inhibitors, H2 receptor antagonists, like omeprazole, lansoprazole, ranitidine, cimetidine, etc.. The above-mentioned drugs are mainly suitable for the treatment of gastric ulcer, gastritis, etc. If the drug is used for a long time, it may lead to a situation of atrophy of the gastric mucosa, which means that atrophic gastritis will occur, etc. There are also more commonly used gastric drugs are bismuth, such as bismuth potassium citrate, colloidal bismuth pectin, gastric bismuth magnesium, etc. The drug contains heavy metal bismuth, if long-term use will cause bismuth poisoning, is a neurotoxic, it is recommended that the patient in the use of gastric drugs, the need for formal consultation with a specialist.