Side effects may occur with pantoprazole, and the magnitude of side effects varies from person to person. Dizziness, insomnia, drowsiness, nausea, diarrhea, constipation, rash, muscle pain, arrhythmia, elevated aminotransferases, changes in renal function, and decreased granulocytes can occur as adverse reactions after the use of pantoprazole. Chances of occurrence and size of individual varies greatly, such as the emergence of more serious adverse reactions, it is recommended to stop the drug in a timely manner to seek medical attention. Pantoprazole is suitable for the treatment of acute upper gastrointestinal bleeding caused by duodenal ulcer, gastric ulcer, acute gastric mucosal lesions, compound gastric ulcer, etc. It is forbidden to use it for those who are allergic to this product, or for pregnant and lactating women. Patients who want to use pantoprazole are advised to go to a regular hospital, consult a professional doctor, cooperate with the doctor to complete the relevant examination, and avoid blind use of drugs.