tren actually never effected my sex drive or function.. actually, quite the opposite.. that being said, never , ever consider a gram of tren.. 200mgs a week is just fine.. sometimes lower.. many use test as a base but, at lower dose (5oo mgs a week) and use more anabolic based compounds.. magnum had a thread about this that was very imformative a few months back.. use thwe search and find it.. it is a good read with many responses..