Malegra 100 acts as an active ingredient in the drug sildenafil. Malegra 100mg is taken some time before intercourse, after which the effect lasts for 4-5 hours. If you want to see the effect quickly before taking Malegra 100mg, take it on an empty stomach. Consult a doctor before taking Malegra 100 Mg. Consult a doctor before taking Malegra. Malegra 100 is widely used for ED problems. Malegra 100mg is not for use by women.