The theme we would like to discuss in our article is dedicated to people who need to have levitra. There were three most significant discoveries in the world medicine: X-rays, penicillin and sildenafil. Today it is called “Viagra”. Persons that researched penicillin and X-rays were awarded a Nobel Prize. This prestigious award was given to chemists that discovered sildenafil in fall of 1998. The history of sildenafil has started in 1992 in Pfizer's Sandwich, where “Pfizer” corporation had its tests. A new medical matter sildenafil citrate was under the research of the “Pfizer” chemists those days. They tested it as a drug from different cordial diseases. Firstly everyone wanted to apply it for increasing blood pressure in myocardium releasing arterial blood pressure in the same time. But after a few tests it was ascertained that sildenafil doesn't give the anticipated result on the cordial muscle blood pressure the same as on the arterial pressure. And it was remarked that masculine patients that took part in the research refused to return the tablets in spite of the test ending. All the patients had the similar reason for saving the medicine with them. Everybody was speaking about the improvement of their erection quality. Thereby “Viagra” induced the evident blood emptying to masculine reproductive organs, in spite of the minimal impact on the blood circulation in myocardium. (more…)

The Clinically Symptoms