The duration of Nicorandil after cardiac stenting ranges from several months to several years, which needs to be judged according to the patient’s condition. Nicorandil can dilate coronary blood vessels, inhibit coronary artery spasm, inhibit platelet aggregation, prevent thrombosis and other effects, so some patients after cardiac stent surgery can take Nicorandil treatment as prescribed by the doctor. If the patient’s recovery after surgery is good, the duration of taking Nicorandil is about several months. If the patient’s recovery is poor, the medication should be taken for several years. It is worth noting that Nicorandil is contraindicated in patients who have undergone cardiac stent surgery with glaucoma, severe liver or kidney disease to prevent aggravation of the condition. Nicorandil is also contraindicated if the patient is allergic to Nicorandil. Some patients may experience headache, abdominal pain, tinnitus, nausea and vomiting, etc., and aspirin can be used to alleviate the symptoms as prescribed by the doctor, otherwise the drug should be discontinued. It is recommended that patients who have undergone cardiac stenting should use Nicorandil as prescribed by the doctor, and should not increase or decrease the dosage of Nicorandil on their own.