pmgamer--I have noticed a big difference since in the last week. I wake up with harder erections, I even get spontanous erections through out the day. I know my insurance will cover the prescription, I'm just hoping it is the 18 copay and not the $40 copay, but well worth it. They will only give me six a month, so I figure I will take it every 72hrs for three weeks, then the week my wife is on her menstrual I will not take it. I am glad to here you have not had any problems with it. My libido is still low, so I am working on that now. I am taking vitexz in the hopes it will lower my prolactin, once that is lowered I am hoping I will be a little hornier.