How do Viagra and Cialis work?

The men who first used sildenfal (the drug now known as Viagra) were not looking for a cure to erectile dysfunction. However, for some, a cure literally fell into their laps. That’s because sildenfal was original developed as drug to combat hypertension, or low blood pressure, in men and women. After it was put into use, many of the male users experienced a very strange side effect.

Consistently, throughout a typical day, they would achieve firm and vigorous erections. This even occurred to men who suffered from impotence. It was then that scientists realized that they had come up with a cure for impotence – without even trying! First released to the market under the brand name Viagra, sildenfal was closely followed by its competitor brand Cialis. Both drugs act in very similar ways to relieve a man of his erectile dysfunction. In order to understand how it works, it is very important to understand what Viagra and Cialis do not do.

Contrary to what many believe, these drugs are not mood enhancing, aphrodisiacal magic potion pills. Rather, they provide a measured effect on the chemistry in the man’s body to further promote the possibility of a successful erection. During the normal erection cycle, various chemicals set off chain reactions which prompt blood flow into the penis in a series of stages. Viagra and Cialis promote the nitrogen chemical, vital for bringing the blood to the starting line.

The true sprint, however, comes in the form of a very useful chemical. It is this one that brings about the massive influx of blood, delivering a rock hard erection to the man. Another important chemical to note here is the one that breaks down the cannonball launcher, and brings the penis back to limpness. It is this chemical that Viagra and Cialis attack, and thus help restore rigidity to otherwise flaccid men.