According to this recent study propecia does not raise risk of ED over the course of 4 years they did this study with like 12,000 participants. It doesnt mean its not possible, but with how many people claim they got ED on these forums you would think the percentage would be sky high. Just kind of shows the big differences between random claims on forums and what real numbers show
http://www.medscape.com/viewarticle..._urol&uac=90007MX&spon=15&impID=1209180&faf=1
http://www.medscape.com/viewarticle..._urol&uac=90007MX&spon=15&impID=1209180&faf=1
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