Fildena 25mg can be the most frequently recommended drug for men with impotence or erectile dysfunction. Men who can take this medicine experience erections that can stay longer. A PDE-5 inhibitor called sildenafil citrate is the main active component included in this drug, it is used to treat erectile dysfunction or impotence in men. Which can be primarily caused by the inadequate blood supply to the penis. By causing the blood arteries to enlarge, this active component can improve traffic flow.