HOW DOES LEVITRA WORK?

Like Viagra and Cialis, Levitra is a phosphodiesterase-5 inhibitor (PDE-5). All of these drugs function in essentially the same way. In smooth muscle cells, cGMP (cyclic guanosine monophosphate) mediates smooth muscle relaxation. The more cGMP, the more the muscles can relax, the more blood can flow in, and the better the erection. PDE-5 breaks down cGMP, so PDE-5 inhibitors like Levitra keep this from happening, helping to maintain high levels of cGMP.

Levitra's strong point is that it is very selective in attacking PDE-5 without affecting other isoenzymes. This allows a smaller dose of Levitra to have the same effect as a larger dose of Viagra (an average Levitra dose is 10mg while an average Viagra dose is 50mg), even though the two drugs essentially function the same way.

Does Levitra Work Without Stimulation?

Many men wonder if Levitra works without any stimulation. The answer is no. This is because the chemicals that cause an erection are released only when a person is aroused. Levitra has no effect on these chemicals being released. It only keeps the chemicals in the penis longer.

How Long Does It Take for Levitra to Start Working?

Many men wonder, "How long do I have to wait for Levitra to work?" The amount of time it takes will vary depending on the individual. In clinical studies, Levitra began to work in most men in under an hour. It is generally recommended that you take Levitra an hour before sexual activity.