Invention is one of the distinguishing abilities of the human being. No other animal has got this “Godly” characteristic. That is exactly what has been gearing civilization against nature, and humanity into greatness. Thousands of new products and services have been invented through the ages. Some of them are brilliant while many others have been ordinary. Surely, Viagra is among the greatest of all times. There is no other man made man’s creation which helped millions of men in the world to effectively engage in what they are born for: Sex.
Since its first patent in 1996, the pace of success of Viagra has been very fast. Just after two years, this caution became approved by the FDA for the treatment of Erectile Dysfunction. After ten years its annual sales had reached nearly two billion AUD. Today, it’s probably the most known drug of all men.
It is not difficult to guess that the invention of Viagra has been inspired by the chemistry of erection. Penal erection happens through intricate processes and various chemicals. The mechanism of erection requires relaxation of the muscles of the pen us. This in turn allows increased blood flow into the male sex organ which ultimately grows into an erect penus. But there are special chemicals in the blood that are also involved. The first one is phosphodiesterase type 5 (PDE5) in the corpus cavernosum. This unique chemical is known to degrade cyclic guanosine monophosphate (cGMP.) The latter is actually useful for penal erection. The action of Viagra is, therefore, inhibiting PDE5. The chemical inside Viagra, sildenafil citrate, enhances more cGMP by inhibiting the action of PDE5. This in turn relaxes penal muscles. Increased blood flow, then, causes effective erection.
Viagra is a prescription drug. Therefore, it should only be started by consulting a qualified physician. This is vital to avoid possible harms due to negligence. It is very important to be informed of possible contradictions of Viagra. The first one is that of Nitrites and Nitrates. Viagra is never advised to to be taken with such drugs. Glyceryl Trinitrate is one such an organic nitrate that should never be administered with Viagra. People living heart diseases are also not recommended to take Viagra. Also known to contradict with the drug are hepatic or liver impairments.
Just like any other drug, Viagra has some mild side effects. The first one is common to many other medicines, and it’s headache. The second one is nasal congestion. In rear cases, taking Viagra may also cause visual problems. Others are minimal