Levitra leads in effectiveness among drugs for increasing potency. Scientists came to this conclusion during the study of the Cologne Medical Center. The peak effect of vardenafil, the main drug component, lasts 3-5 hours. This time is sufficient for a sexual intercourse (and not even one!).
An erection is a hemodynamic process. Usually a man is excited, a lot of blood rushes to his penis, but the outflow is blocked. Cavernous bodies are filled with blood, the member becomes erect.
The use of Levitra makes minor adjustments to the natural process. As a result of sexual stimulation, the cavernous bodies of the penis secrete nitric oxide. The concentration of the substance increases, and the enzyme is activated. It is involved in the development of cGMP. Vardenafilum acts as an inhibitor of the PDE5 enzyme and an enhancer of the nitric oxide action. Such changes increase the sensitivity of the penis and cause a strong erection, but only right before sexual contact. At other times, the man feels as usual.
When sexual intercourse comes to an end and ejaculation occurs, the effect of the medicine becomes weaker. But it is enough to get excited again, and a stable erection will reappear. While the drug is still effective, only sexual arousal or stimulation is required for the member to take the erect position.
A similar effect is observed in almost all men who have taken Levitra and have problems with sexual function. The medicine works even with a presence of diabetes and after removal of the prostate gland.