As you can see, the dear reader, an arsenal of ways of treatment in this sphere of medicine is wide enough and various.

However all these methods by the efficiency, availability and, the main thing,safety cannot go to any comparison with “Viagra” tablets.

Unlike other ways of erectile dysfunction treatment which provide carrying out of injections in a penis or other medical procedures, “Viagra” is a simple, convenient and easily applied preparation. At use of “Viagra” you simply accept one tablet when plan sexual contact.

As to the mechanism of “Viagra” action it consists in an increase of the blood quantity coming in a penis that helps the man to cause natural erection.”Viagra” operates only when the man experiences natural sexual excitation and when the sexual intercourse is finished, the penis naturally comes back in the weakened condition. In other words, “Viagra” operates only on natural mechanisms of erection occurrence and there is its indisputable novelty and a secret of huge popularity in it.  How “Viagra” has been invented?

In the history of medicine there are many facts when occurrence of surprising opening was result of accidental supervision or finds. Two brightest examples till now are an opening x-ray radiation and antibiotics.

In 1895 the German scientist Wilhelm Konrad Rentgen  paid attention to an unusual green luminescence in the  darkness of objects which shortly before it were close with a worked high-voltage cathodic tube for some time.

Also he paid attention to that there was a light-striking of the packed photographic film which also was nearby from a worked high-voltage tube. These unexpected supervisions had allowed the ingenious physicist to come out with the assumption of radiation availability which earlier was not known to mankind. Later on, as is known, this courageous assumption had been completely confirmed.
The history of antibiotics opening is a sequence of even more surprising concurrences. In 1928 the British researcher Alexander Fleming incidentally detected, that a kind of dirty mould destroyed almost all types of bacteria which he grew up for bacteriological experiments. However instead of subjecting the laboratory dishes for cultivation of bacteria of sterilization and to begin experiments anew, Fleming had studied properties of a dirty mould in the most careful manner which to us is known now entitled “Penicillin“. So antibiotics which have made revolution in medicine had been opened.

The discovery of “Viagra” became, apparently, the third greatest “accidental” opening in medicine. That fact testifies to it also, that all the discoveries about which there had been told above, awarded the Nobel Prize. The same high award in the fall of 1998 the researchers who had opened, besides other things, properties of a preparation “Viagra” had been awarded. The history of “Viagra” began in 1992 in  Great Britain, in the place Pfiser the Sandwich, during pharmacological researches of firm ” Pfiser”. Researchers were carrying out clinical tests of new medicinal substance – Citrate Sildenafil which was developed as means for treatment of some cordial illnesses.

Scientists counted on that citrate of sildenafil will assist the increase of blood inflow to a cardiac muscle and decrease in arterial pressure. However it was noted, that citrate of sildenafil did not render essential influence neither on blood circulation in a cardiac muscle (myocardium), nor on arterial pressure.

There were, that many patients of a male who participated in research, refuse to return sildenafil tablets, despite of the termination of testing. The reason for refusal at all these patients was one – all of them noted themselves sharp improvement of erection quality. Thus, despite of the minimal influence of a new medicine on blood circulation in a myocardium, sildenafil caused perceptible blood inflow to a man’s genitals. The researchers of pharmacological company ” Pfiser ”  concerned to this unexpected property citrate sildenafil with due attention and  managed to distinguish  a powerful tool in it  against erection disturbances. The new preparation received the name “Viagra” – the name was born as though as a result of merge of the words «Vigor» (authority, energy, force) and Niagara – the most powerful waterfall in Northern America.

Since 1993 the long-term clinical tests necessary for confirming of “Viagra” properties began. As a result of these tests high efficiency of “Viagra” for treatment of impotence and a high security of this preparation were proved. And as the natural ending – on March, 27th, 1998 Department of the USA on the foodstuffs and medicines approved application of “Viagra”

It is about common medicines and so-called psychotropic substances – ie Substances that have an impact on the psyche. First of all, it is alcohol, nicotine and drugs. Alcohol. In small doses stimulates the central nervous system, as is known – “Alcohol in small doses is safe in any quantity. In this regard, alcohol abuse is a major risk factor in the development of erectile dysfunction.

The main reason for violations of the quality of erections on a background of alcohol is a violation of liver function and as a consequence – of the metabolism of male hormones that affect normal sexual function. Among other things intoxicated blunted tactile sensitivity, and as a result of problems with ejaculation until its complete absence.

In addition, as established, nicotine causes atherosclerosis – a dangerous disease, which leads to increased brittleness and blockage of blood vessels. Most suffer from atherosclerosis of the heart and blood vessels of the brain and as a result of man may be a myocardial infarction or stroke, which in themselves make normal sexual activity impossible. But often there is narrowing or complete occlusion of blood vessels of the penis, in which case the patient develops persistent impotence. Of drugs – now this is the main health problem for industrialized countries. The problem lies in the fact that the number of drugs used is very large and describe the impact of each of them is possible, therefore tell you about the impact of some of them. The peculiarity of the impact of drugs on the potency of that directly on the mechanisms of erection, they do not work. Their impact is developed with regular admission to the background of the development of complications of drug abuse. A common mechanism in the occurrence of impotence while taking drugs, is the development of depression, which occurs, when a break in taking of drugs at a time, when a person has already formed drug addiction.

Most doctors faced with non-injecting drug use (i.e. drugs that enter the body not as a result of injection and by inhalation, receiving through the mouth or smoking). In this group, occupy a principal place of Marijuana (hashish), cocaine, amphetamines, LSD (lysergic acid diethylamide). This medication causes a toxic polyneuropathy – a dangerous disease of the nervous system, in which both would die nerve fibers of the human body. This, in addition to other dangerous disorders, leads to disruption of erections due to violation of the innervation of the penis.

For injecting drug users (heroin, morphine, etc.) is also characterized by the development of toxic polyneuropathy, but apart from it there is a risk of specific complications associated with the huge risk of infection, which expose themselves addicts. The most frequent infection, which each injection drug user at risk “catch” AIDS is not as many people think (although this, of course, the most dangerous infections) and viral hepatitis. As a result of viral hepatitis develop very severe liver problems, which lead to impotence. Pharmaceuticals. Of course, the development of erectile dysfunction is a very rare side effect of medication, and usually erectile dysfunction taking place after the abolition of such drugs, but nevertheless aware of the drugs that may cause such a complication should be.

The most common erectile dysfunction occur after administration of neuroleptics – drugs , used in the practice of psychiatrists. Chronic administration of these drugs can cause changes in the motor centers of the brain and lead to the development of parkinsonism – the status of this Parkinson’s disease, which leads to erectile dysfunction. And yet another category of drugs – drugs for the treatment of stomach ulcers from the group of blockers of histamine H2 receptors. Those who take these drugs immediately understand what was going on – first of all “cimetidine”. This antiulcer tool that Propafenone leads to a change in the exchange of male hormones in the body and as a result – to impotence.

So the male ulcer – beware! If you help this drug, it is best to use the more modern of its analogs, such as “Zantac (Generic:  Ranitidine 150/300mg)”  (“Ranisan”) or “Pepcid (brand names- Famocid)” who are deprived of this serious shortcoming of his predecessor.