Buy Viagra Online

Opening of a preparation "Viagra", more precisely, roles of small molecule NO (nitrogen oxyde) in the mechanism of occurrence and maintenance normal and adequate erection, has made the present revolution in modern sexual pathology. After all now in an arsenal of doctors for the first time there was an effective remedy for treatment of an impotence which can be accepted in the form of ordinary tablets. Reception of the Nobel Prize by group of the scientists investigating a role of a molecule of nitrogen oxyde in our organism, confirms it as well as possible. The matter is that till now there was no the medicine, capable to cause erection at intake. All than we had are injection preparations, that is preparations which should be entered directly in a sexual member for some time before exciting event. It is not difficult to guess that similar "prelude" of mood to our patients did not lift. Besides morbidity of procedure of introduction of a medical product in a sexual member, she demands a certain skill and can, though and is rare enough, to lead to complications. But that only you will not make for the sake of Love … It is clear that to swallow a tablet of special skill is not required. However, "Viagra" as, however, and any other medical product has strict indications and contra-indications to application. By-effects are exclusively rare, but, nevertheless, are possible.

In 1895 German scientist Wilhelm Konrad Rentgen has paid attention to an unusual green luminescence in the dark of subjects which shortly before it were any time close with a working high-voltage cathodic tube. Also he has paid attention that there is a fogging of the packed photographic film which also was nearby from a working high-voltage tube. These unexpected supervision have allowed the ingenious physicist to come out with the assumption of presence of radiation which was not known earlier to mankind. Further, as it is known, this courageous assumption has been completely confirmed.

The history of opening of antibiotics is sequence of even more surprising coincidence. In 1928 the British researcher Alexander Fleming has casually found out that any dirty mould has destroyed almost all kinds of bacteria which it grew up for bacteriological experiments. However instead of subjecting laboratory ware for cultivation of bacteria of sterilisation and to begin experiments anew, Fleming has studied in the most careful image properties of a dirty mould which to us is known now under the name "Penicillin". So antibiotics which have made revolution in medicine have been opened.

"Viagra" opening became, apparently, the third greatest "casual" opening in medicine. That fact testifies to it also that all opening about which it has been told above, have been awarded the Nobel Prize. The same high award the autumn of 1998 had been awarded the researchers who have opened, besides other, properties of a preparation "Viagra".

"The Viagra" history has begun in 1992 in Great Britain, in a place of Pfizers the Sandwich, during pharmacological researches of firm "Pfizer". Researchers conducted clinical tests of new medicinal substance - Sildenafil Citrate who was developed as means for treatment of some warm illnesses. Scientists counted that tsitrat sildenafila will promote increase in inflow of blood to a cardiac muscle and decrease in arterial pressure. However it has been noticed that sildenafil citrate does not render essential influence neither on blood circulation in a cardiac muscle (myocardium), nor on arterial pressure. It was in parallel found out that many patients of a male who participated in research, refuse to return tablets sildenafil, despite the testing termination. The cause of a failure at all these patients was one - all of them have noted at themselves sharp improvement of quality erektsy. Thus, despite the minimum influence of a new medicine on blood circulation in a myocardium, sildenafil has caused notable inflow of blood to man's genitals.

Researchers of pharmacological company "Pfizer" have concerned this unexpected property sildenafil citrate with a proper attention and have managed to distinguish in it a powerful tool in struggle against infringements erection. The new preparation has received the name "Viagra" - the name was born as though as a result of merge of words «Vigor» (the power, energy, force) and Niagara - the most powerful falls in the North America.

Since 1993 the long clinical tests necessary for acknowledgement of properties of "Viagra" have begun. As a result of these tests high efficiency of "Viagra" for treatment of an impotence and high safety of this preparation has been proved. And as the natural ending - Department of the USA on the foodstuffs and medicines has approved on March, 27th, 1998 "Viagra" application