History of Viagra – how Viagra appeared

History of Viagra - how Viagra appeared

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History of Viagra – how Viagra appeared

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How did the drug Viagra, intended for the treatment of erectile dysfunction

In many Western and European countries, Viagra can only be purchased with a prescription, and after the patient has undergone a thorough medical examination, but in Russia this remedy can be purchased without a prescription at any pharmacy. The principle of the drug is very simple: after taking the pill, the tadalafil 20mg blood saturates the cavernous bodies of the penis, they seem to stretch when excitation occurs, after the blood is trapped in the Levitra 20 mg how to use cells, therefore, the erection intensifies. But remember: if erectile dysfunction is caused by circulatory disorders, hormonal or psychological problems, Viagra will not help. In this case, you need to contact a specialist to correct the condition.

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Many are interested in the question, what will happen if a healthy man who has no problems with potency takes the pill. The answer is simple: nothing will happen, except that the interval between sexual acts will decrease..

Many people are interested in the history of the appearance of this drug because it has been on the market for a long time, more than 15 years! In 1999 levitra and alpha blockers, the drugs Viagra entered the market, its main purpose is to increase male strength and erection, the most interesting thing is that it was not obtained on purpose, it was invented by accident, just as the power of X-rays and the effectiveness kamagra tablets buy viagra cheap for sale of penicillin were once proven.

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In 1992, the pharmacological company Pfizer conducted research on the drug sildenafil citrate, it was expected that this substance would lower blood generic levitra,10 pressure and improve blood flow to the brain. However, during testing, it was found that sildenafil citrate does not have a lowering effect on blood pressure, then the company closed the research in this direction and demanded that volunteers return the remnants of the tablets, but the men categorically refused to do this, referring to the fact that they had lost or thrown away the drug, and some of the subjects even began to deny sildenafil 100mg the very fact of participating in testing.

Only one subject honestly admitted that the drug caused him tadalafil pills to have an increased erection, which he was incredibly happy about. At first, doctors were dumbfounded and did not know how to react to the words of the man, and whether it was worth somehow promoting research in this direction. A corporate decision was made to test Viagra to increase potency.

Over four years of research, more than four thousand subjects, whose kamagra effects age ranged from 19 to 89 years, took part in the experiment. All of them were united by a common diagnosis – erectile dysfunction. Over $500,000 was spent on the study, but the results were stunning: over 80% of the subjects showed an improvement in potency, and no side effects were found.

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After that, it was decided to mass-produce the drug, now known as Viagra, an analogue of which can now be purchased at our men’s pharmacy..