This composition is about “Viagra” and some other medications for those persons who would like to buy viagra. There were three greatest discoveries in the world medicine: X-rays, penicillin and sildenafil. It was created under the term of “Viagra”. X-ray and penicillin researchers were given a Nobel Prize. But the discoverers of sildenafil were also awarded this prestige prize in autumn of 1998. In 1992 the discovery was done in Sandwich, Kent, the location where at that time “Pfizer” company had the laboratory. A new medical matter sildenafil citrate was under the study of the “Pfizer” chemists those days. They were making remedy from various heart diseases. The researches anticipated that sildenafil citrate would favor the increment of blood pressure to heart muscle and release arterial pressure. The researches presented unforeseen consequences. There was too bad effect on myocardial and arterial pressure that it couldn't be applied as this kind of remedy. It was also mentioned that those male patients who were under the experiments didn't return the drugs back. Every patient has one and the same motive why he didn't wish to return the drugs. Everybody was saying about the improvement of their erection quality. Thereby sildenafil caused the tangible blood emptying to male reproductive organs, in spite of the minimal influence on the blood circulation in cordial muscle. (more…)