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The drug Viagra wasn't even intended to treat what is so widely known for now, in the beginning. It Was designed in the 1990s with the for the purpose of treating a form of heart disease known as angina pectoris. http://www.viagraus.com
It didn't work for the purpose it was intended, however, researchers of the drug noticed an interesting side effect of the drug at those who are testing it. It consistently induced erections. http://www.viagraus.com