Malegra 100 mg pills should be used by men all over the world who are suffering from the problem of erectile dysfunction and looking for a cure for this problem. Malegra 100 contains Sildenafil as an active ingredient. The effect of this medicine lasts for 4-5 hours. Men should take this medicine 30 minutes before sexual intercourse. You should not eat heavy food while taking this medicine. Do not use alcohol with this medicine.