Viagra, Levitra or Cialis?
Erectile dysfunction appears when a normal erection can’t be achieved or sustained from a sexual activity. When this happens most men tend to take medications such as Viagra, Levitra and Cialis. This usually works having little or no side effects. Although all tree medications result in ameliorating the erectile function, it has been proven that the Cialis’s effects last longer. Due to this and some other small differences the propensity of choosing one treatment over another seems higher with some men.
Medications such as Viagra, Levitra and Cialis help stimulating the growth of nitric oxide in one’s organism, a chemical produced during sexual activity. This allows the blood vessels in the penis to relax and open, thus creating and maintaining an erection. Nevertheless these medications don’t just “act” by themselves in all cases a sexual stimulation is necessary.