Suhagra 100 tablet contain an active ingredient called sildenafil citrate. Which is a powerful medicine to overcome the problem of erectile dysfunction. The effect of this drug lasts for 4 to 6 hours. And taking suhgra tablet one hour before sexual intercourse can see the good effect of this medicine. Seek medical advice before taking this medicine. And if you want to increase or decrease the dosage of this medicine, first consult a doctor.