Maybe your "bro" should be doing some research...how old is he?
I think you should do some more research, you sound uneducated on the whole subject. Here is a tip, there is a search box up top, try typing in PCT, it may help you...
If he is so concerned about his sex drive maybe he shouldn't do steroids? Sounds like he is looking for a miracle... like any drug Steroids are going to have their side effects. Unfortunately one of them is libido problems, that's part of the sacrafice.
I'm not trying to be a jerk, but you should really look into this more and listen to a vet like legobricks, and the other guys, they know what they are talking about. Your "brother" best bet is test E with his winstrol. He will get some solid gains, and shouldn't lose to much sex drive if it's his first cycle. Once again, just trying to help out. Good luck to your "brother".