Viagra is dangerous,, so get to the root of the problem which is usually low testosterone levels... read the 2nd 1/2 of my profile for alot of info... keep in mind that if your score falls within the normal range that it doesn't mean its normal for you... I need my level over 700 to feel normal confirmed by many tests through the years
Over here http://www.straightmansweb.com/39 are some tips on how to use Viagra...