It was 1998 when the pharmaceutical market launched a new revolutionary drug for male sexuality: Viagra turns 15 today. In all this time we talked and discussed a lot of this medicine and it has given space to those who were once real taboo. But what are the results?

When triggered the desire to make love, as determined by testosterone in humans come into action mediators, including dopamine. In this way you activate the nerve centers , which result in a series of events, whose culmination is an erection . A greater amount of blood to the corpus cavernous arrives so that you “swell” and imply an increase in penis size. This mechanism is offset by the closure of the veins, which prevents the blood from flowing and allows you to maintain your erection to orgasm. Sometimes, however, this process does not happen and so lacks an erection. Viagra and his brothers Following Viagra, whose active ingredient is enfilade, have been put on the market two other drugs with different active ingredients.

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All, however, have in common the principle of operation, the action of nitric oxide, the substance that causes dilation of the arteries of the penis . These benefits however, are achieved only when the desire is triggered in the brain and not in a purely mechanical. Among the main causes of ‘ impotence there are diseases of vascular origin, intake of certain drugs and the abuse of alcohol and drugs . 2 In 10 cases the origin of the problem is psychological, because those who live in a period of stress alters the formation of certain substances in the brain, such as cortisol. So even in these cases Viagra can be a temporary solution to the problem. drugs against impotence in comparison .

For the correct choice of which drug to take is essential to seek medical advice and, later, with prescription you can buy the pill. Not only for erectile dysfunction These drugs today are also prescribed after a surgery to remove the prostate for a tumor , such as rehabilitation therapy, and in cases of urinary problems . In the latter case will be prescribed a daily dose of Tadalafil. Anyway, it is not recommended to do it yourself or purchase of drugs via the Internet, because Viagra can also have negative effects .