NO in turn activates an enzyme called Guanylate Cyclase that itself triggers levels of Guanosine Monophosphate to increase. It's up there with the likes of Nike, Coca-Cola, Pepsi and Microsoft as one of the world's most instantly recognisable brands. Most men will have a problem getting an erection at some time in their lives. Extensive trials of Viagra have proven it effective in treating cases of ED caused by other medical conditions. This in turn can have a 'knock on' effect psychologically as the man gets dispirited or depressed at his inability to 'perform' which can further exacerbates the problem. One particular product above all others has become so enormously popular worldwide it has ingrained itself upon the male psyche like no other brand before it. We are going to take a look at what Viagra is and what it does and hear from some people who have already used this little pill that has literally revolutionised their sex life. Such is the popularity and apparent efficacy of the drug that 9 tablets are dispensed every second worldwide and over 600,000 doctors recommend Viagra for the treatment of ED. What can be a distressing condition is surprisingly common among men of all

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