Alisatan ester is recommended to be taken on an empty stomach, not with food, or try to take it after an hour interval after meals. Alisatan esterase needs to be involved in the metabolism of gastrointestinal esterase to exert its pharmacological effects, and food will reduce the absorption of alisatan ester and affect the absorption and utilization of the drug. Patients who need to take this drug, need to take the appropriate dose at the appropriate time under the guidance of a doctor, generally recommended that alisatan ester be taken in the morning on an empty stomach. In addition, it should be noted that Alisatan ester may cause adverse reactions in the digestive system, such as nausea, stomach upset, stomach pain and other symptoms, or patients themselves have poor gastrointestinal function and other conditions, it is recommended that the product be taken one hour after meals; Alisatan ester other common adverse reactions are fatigue, headache, dizziness and so on. In the case of intolerable adverse reactions, please consult a doctor in time to clarify the cause and then change the drug according to the condition. When using medication for treatment, be sure to follow the doctor’s instructions, rational application of drugs, do not use drugs arbitrarily to avoid causing adverse reactions.