Viagra: the effective Erectile Dysfunction treatment.

The treatment of erectile dysfunction before the advent of modern therapies was through psychoanalysis. Recent development has helped in better understanding of the condition and has resulted in the implication organic conditions as the major causes of ED. Unlike the previous times when it was generally believed that the major causes of ED were psychogenic in origin, physical conditions like vascular diseases, nerve damages and hormonal imbalances have all been implicated as the underlying causes of ED.

The import of this is that the responsibility of treating ED shifted primarily from the psychiatrists to urologists.

However, a second shift has in recent times brought about a more convenient approach to treating ED in the form of the introduction of Viagra tablets into the market. Since being introduced into the market, the popularity of this new drug is such that medical practitioners and internists in the western world say that a simple prescription of Viagra tablets can treat most or all cases of erectile dysfunction.

Understanding how the erection of the penis works, it is believed, helps in the treatment of the physical causes of erectile dysfunction, and Viagra tablets can effectively cure all erectile dysfunction type. In fact, Viagra is the first-choice treatment for over 95 percent of cases of erectile dysfunction. This raises issues about how safe and efficient other ED treatments are.

On a positive side though, the advent of Viagra tablets has brought about a sea change in the manner men and their doctors tackle the issue of erectile dysfunction and, unlike in the past when the discussions on ED was a taboo, the condition is now freely discussed.
An understanding of the anatomy of the penis is important in order for one to understand the physiological changes that take place in the body during ED.

The general function of the penis is to expel urine from the body. Also, the penis, when rigid, is an important organ that allows for copulation and the introduction of semen into the vaginal canal of the female.

For sexual penetration or mating to take place, the man has to be sexually aroused before his penis can become rigid. Rigidity of the penis occurs in a series of reaction that starts with the sending of the conscious or unconscious neurological signals from the cerebral cortex and limbic system to the hypothalamus. These signals are then passed on to the sympathetic and parasympathetic neurons of the penis. The neurotransmitters are then released by the nerve endings.

The neurotransmitters relax the smooth muscle cells lining the corporal bodies and the arteries supplying blood to the penis (vasodilation), and this allows for more blood to flow into the penis and for erection to take place. The entire processes involved in rigidity or erection are regulated by the brain's inhibitory control.

For the processes involved in erection to start, a sexual stimulus, which could be in the form of tactile, auditory, gustatory, visual or olfactory, is needed.

Any interference of this nerve pathway could lead to ED.
Most people order Viagra tablets because they are an effective treatment for ED. Reputable pharmaceutical companies are most times guaranteed to sell real Viagra tablets.

The active ingredient in real Viagra tablets is sildenafil citrate, a selective inhibitor of cGMP specific phosphodiesterase type 5, an enzyme that degrades cyclic guanosine monophosphate (cGMP).
The inhibition of cGMP specific phosphodiesterase type 5, allows for the levels of cGMP to build up and for the concomitant relaxation of the smooth muscles and erection.

Viagra is the registered trademark of Pfizer Inc., the largest drug maker in the world.