The active ingredient called sildenafil citrate is found in the cenforce tablet. Used to treat erectile dysfunction in men. The effect of this drug lasts for 4 to 6 hours. And if the effect of cenforce 100 lasts for more than 4 hours, consult a doctor immediately. Consult a doctor before using this medicine. Seek medical advice before increasing or decreasing the dose of this medicine. Only take this medicine if you have ED problem. visit our website to see a good cenforce reviews.