Sildenafil citrate tablets are usually not allowed to be taken during the period of unstable condition after cardiac stenting, and can be taken with caution under the guidance of a doctor when the condition is stabilized. Sildenafil generic name is sildenafil citrate tablets, it is a western drug, a phosphodiesterase type 5 inhibitor. It is used to treat erectile dysfunction. Adverse effects of Sildenafil Citrate Tablets include systemic reactions such as edema, photosensitivity, shock, malaise, pain, and abdominal pain, and to the cardiovascular system there is a risk of angina pectoris, palpitations, myocardial ischemia, and cardiac arrest. It is contraindicated in patients with known hypersensitivity to any of the ingredients in this product. Sildenafil citrate tablets should not be taken orally in patients with coronary artery disease who have had a myocardial infarction, hypotensive shock or life-threatening arrhythmia in the last 6 months, in patients with left ventricular outflow tract obstruction and in patients with diseases accompanied by severe impairment of autonomic control of blood pressure. Sildenafil can be taken with caution under the supervision of a doctor for those who are stabilized after cardiac stenting. If there is a need for medication after cardiac stenting, it should be used under the guidance of a doctor, and should not be used blindly on its own, so as not to cause adverse effects on the body.