Levitra Drug Class and Mechanism of Action
Published 04/09/2011 | 
A penile erection is a complicated process involving different organs, tissues and chemical substances. If anything goes wrong the erection may not occur.
The penis is composed of two chambers called the corpora cavernosa on the whole length of the organ. Corpora cavernosa is filled with a spongy tissue and circled with a membrane, called the tunica albuginea. The spongy tissue consists of smooth muscles, fibrous tissues, spaces, veins, and arteries. A special channel for urination and ejaculatation – urethra stretches along the underside of the corpora cavernosa. The urethra is enclosed by the corpus spongiosum.
Levitra consisting of Vardenafil causes erection by sensory and mental stimulation. Impulses from the brain and local nerves allow the muscles of the corpora cavernosa to relax, allowing blood to flow in and fill the spaces. The release of nitric oxide in the corpus cavernosum during sexual stimulation activates the enzyme guanylate cyclase and increases the level of cyclic guanosine monophosphate (cGMP) responsible for smooth muscle relaxation in the corpus cavernosum and producing necessary blood inflow. Vardenafil enhances the effect of nitric oxide by inhibiting phosphodiensterase type 5 (PDE5) which answers for degradation of cGMP in the corpus cavernosum. Levitra creates pressure in the corpora cavernosa, making the penis expand. The tunica albuginea helps take in the extra blood in the corpora cavernosa, thus keeping an erection.
Still it is necessary to remember that Vardenafil at recommended doses has no effect in the absence of sexual stimulation, a person should be sexually aroused for the medication to start working.
If you experience some potency problems do not hesitate and waste your time, Levitra will restore your sexual life and even make it better.
