Sildenafil citrate is the main ingredient in Malegra tablets.This tablet is a very popular tablet for the treatment of Erectile Dysfunction.This tablet is Malegra 100 having 100 mg of Sildenafil citrate. Malegra tablet is taken orally with water. This tablet is taken 1 hour before sexual intercourse. The effect of this tablet lasts for 4 to 6 hours.