I read that prohormones can cause a loss of libido and I feel that this might be responsible for some sexual problems I have been having. I am having trouble having sex with my girlfriend even though I can get erections its finishing that has been a problem. I have done 3 cycles before, one test prop and two winny but never had a girlfriend before during this time. I hope that the problem is the 1-ad I have been taking but I was wondering if anyone else has ever had this problem and if they were able to cure it, I am hoping right now its a drug problem not a mental problem, that if my libido increased maybe this wouldn't be an issue.