Suhagra 100 is a medicine taken for male sexual dysfunction. The main ingredient in this drug is sildenafil citrate. This drug relaxes the blood vessels and helps increase blood flow to the muscles. It is important to consult a doctor once before taking this medicine so that you do not experience any side effects. The effect of this drug is seen in about 30 minutes. The effect of this medicine lasts for 3 to 4 hours, which is enough for erection.