To cure ED(Erectile Dysfunction) or impotence start use of fildena. The main role in this was play by sildenafil citrate in different way. The sildenafil starts work by pushing a more blood to the penis, when a penis fulfil by blood a men can able to maintain firm erection for long hours of time. A fildena comes with many dosage and the best one and most recommended are Fildena 100, Fildena 150, Fildena Super Active.