Erectile Dysfunction Medication – Sildenafil

Erectile dysfunction is sometimes referred to as impotence. This physical phenomenon occurs when a person is constantly unable to get or maintain an erection sturdy enough for sexual intercourse. The term impotence is also used to define a number of other issues that prevent or restrict sexual activity and reproduction, but when erectile dysfunction is involved, these issues are of no concern. There is a drug with the generic name of Sildenafil citrate, which is used to treat this physical disorder; it is sold under the trade name of Viagra.

Pfizer, a multinational pharmaceutical company, originally developed this wonder drug as a remedy for high blood pressure or hypertension and ischaemic heart disease, but it was later found to also prevent erectile dysfunction. Viagra inhibits an enzyme responsible for controlling the flow of blood to the penis by releasing nitric oxide inside the corpus cavernosum of the organ. Since the enzyme guanylate cyclase is not bound, the result is boosted levels of cyclic guanosine monophosphate, which lead to the relaxation of the smooth muscles. Blood can easily flow in, causing an erection and preventing erectile dysfunction.

Apart from the treatment of erectile dysfunction, Viagra is also efficient in preventing a rare disease known as pulmonary arterial hypertension or PAH. It works by relaxing the arterial walls, thereby easing the resistance of the pulmonary arteries. This process takes away some of the work done by the right ventricle in the heart, reducing the chances of suffering right-sided heart failure. High altitude pulmonary oedema or altitude sickness is another disorder that Viagra can cure and professional athletes are now using the drug, because they believe that if their blood vessels are opened, it will let blood flow more efficiently through their muscles, thus boosting their performance.