Nicorandil tablets can be taken for a long time, but the daily dosage should generally not exceed 60mg. Nicorandil tablets are mainly used in the treatment of coronary heart disease and angina pectoris. The specification is 5mg, and the regular dosage is 5mg~10mg once, 3 times a day, which can be increased or decreased according to the severity of symptoms. Nicorandil tablets clinically common adverse reactions are headache, dizziness, tinnitus, insomnia, etc., then take aspirin can reduce the symptoms, if there is no improvement or the appearance of allergic reactions such as skin rashes should be discontinued. Also can be seen abdominal pain, diarrhea, loss of appetite, dyspepsia, nausea, vomiting, constipation, xerostomia, palpitations (rapid heartbeat, often accompanied by panic), fatigue, flushing and swelling of the lower extremities and other adverse reactions. When clinically applying Nicorandil Tablets, it should be noted that it is forbidden for patients with glaucoma, patients with severe liver and kidney diseases and those who are allergic to this product. It can be taken for a long time, but the daily dosage should not be more than 60mg, because large doses of the drug may cause excessive lowering of blood pressure. Consult your doctor for specific dosage.