The commonly used clinical dosage form of teprenone is capsule, and its efficacy is anti-ulcer, increasing gastric mucus, protecting gastric mucosa, etc. Side effects include digestive system abnormality, allergic reaction, headache and so on. Teprenone capsule is a kind of gastric mucosal protection drug, which has the effect of improving a variety of gastric mucosal lesions, clinically used in the treatment of gastric ulcers, or used for gastric mucosal lesions (e.g., erosion, hemorrhage, flushing, etc.), acute gastritis, and improvement of acute exacerbation of chronic gastritis. Some patients may experience digestive abnormalities (e.g. thirst, nausea, abdominal distension, abdominal pain, diarrhea, etc.), allergic reactions (e.g. rash, pruritis, etc.), headache, liver function abnormalities, redness of eyelids and other adverse reactions during the use of the drug, and should consult a doctor if the discomfort is more serious. It should be noted that the use of teprenone capsules is prohibited for those who are allergic to any component of the drug, and patients should follow the doctor’s instructions to take medication, not blindly use the drug on their own, so as to avoid the occurrence of side effects.