Levitra is a drug for treatment of male problems such as erectile dysfunction.
The product contains an ingredient called Vardenafil, which is an inhibitor of the enzyme phosphodiesterase type 5.
Erection is a hemodynamic process, which is based on the relaxation of smooth muscles of cavernous bodies and arterioles. Sexual stimulation causes the release of nitric oxide from the nerve endings of the cavernous bodies. Next, nitric oxide activates the enzyme guanylate cyclase, resulting in increased levels of cyclic guanosine monophosphate (cGMP) in the cavernous bodies. As a result, there is relaxation of smooth muscles of cavernous bodies, which helps to increase blood flow into the penis.
Levitra is capable of blocking PDE5, which breaks down cGMP, resulting in the effect of endogenous NO is enhancedduring sexual stimulation, causing the ability of the drug to enhance the natural response to stimulation.
The drug is used inside, an important difference from other products is that its effect is not affected by meal, alcohol intake. Levitra is effective only when there is optimal level of sexual stimulation.