Vardenafil acts as the active ingredient in Vilitra. The action of the Vilitra drug is similar to that of sildenafil and tadalafil. Vilitra drug is used when people are suffering from a serious problem like impotence. Vilitra is the best drug for men to use. Consult your doctor before taking a whitish drug. Vilitra drug is mainly taken 1 hour before intercourse. The effect lasts for 4-5 hours after taking Vilitra drug.