Does Viagra for men have side effects?

Viagra generally refers to sildenafil citrate tablets. Sildenafil citrate tablets for men have side effects such as facial edema and migraine.
Sildenafil citrate tablets are a clinical drug used to treat erectile dysfunction in men. Clinically, some men taking Sildenafil Citrate Tablet have side effects such as facial edema, migraine, postural hypotension, allergic reaction, liver function abnormalities, anemia, and arthritis.
Sildenafil Citrate Tablets are contraindicated for those who have had myocardial infarction or shock in the last 6 months, and for patients with resting hypotension or hypertension, heart failure, and retinitis pigmentosa. Sildenafil Citrate Tablets are also contraindicated for people who are allergic to the components of the drug, women, children and other people.
It is recommended that men take Sildenafil Citrate Tablets as prescribed by the doctor, and should not use the drug indiscriminately or increase the dosage of the drug arbitrarily. If there are any uncomfortable symptoms after using the medicine, you should consult a doctor in time.