Side effects of Nicorandil Injection mainly include circulatory reactions such as hypotension and increased heart rate, central nervous system reactions such as headache, dizziness and numbness of limbs, digestive reactions such as nausea, vomiting and elevated aminotransferases, as well as hematological reactions such as anemia, thrombocytopenia, and increased leukocytes, and urological reactions such as elevated blood creatinine and positive urinary protein. Nicorandil Injection is a nitrate compound and is mainly used clinically for the treatment of unstable angina pectoris. Some side effects may occur when using this product: 1. Circulatory system: such as hypotension, increased heart rate, and in severe cases, ventricular tachycardia may also occur. 2. Central nervous system: mainly headache, dizziness and numbness of limbs. 3. Digestive system: nausea, vomiting, epigastric discomfort, elevated aminotransferases may occur. 4. Hematological system: anemia, thrombocytopenia, increased white blood cells, etc. may occur. 5. Urinary system: mainly elevated blood creatinine, positive urine protein, etc. 6. Other: the use of this product may also appear rash, serum total protein reduction, elevated blood potassium, cholesterol reduction and other adverse reactions. Allergic to this product, niacin is prohibited, the specific use of drugs need to follow medical advice.