Vonorasan Fumarate Tablet is an acid-suppressing drug, and the occurrence of stomach acid after stopping the drug may be due to insufficient course of medication, sudden stopping of the drug, unreasonable diet and other factors. 1. Insufficient dosage program: If the dosage and treatment program are not adjusted according to the doctor’s instructions and according to the individual situation during the medication period, it may lead to poor therapeutic effect of the medication and the emergence of excessive gastric acid. 2. Sudden stopping or drug resistance: if the oral voronoi fumarate tablets, the condition is not recovered suddenly stopping the drug will appear drug rebound phenomenon, will lead to acute exacerbation of the disease and the symptoms, so after stopping the drug appeared to have too much gastric acid does not exclude this situation. In addition, acid inhibitors also have a certain rate of drug resistance, long-term use may reduce the efficacy. 3. Unreasonable diet: the drug alone can not produce long-term effect of controlling gastric acid secretion, when the oral drug treatment of vonorasone fumarate but do not pay attention to dietary intake, eating spicy stimulating, cold food; or drink coffee, strong tea, carbonated beverages, and so on; as well as to eat too much acidic, sweet and salty food will stimulate excessive gastric acid secretion, so the occurrence of gastric acid secretion after stopping the drug does not exclude this situation. In addition, for this drug and its components of the allergy is prohibited, if after taking the drug appeared nausea, vomiting, diarrhea and other discomforts, it is recommended to go to the hospital in time to consult the doctor for treatment.