i'm stacking it w/ephedrine,and asprin right now. it's working good so far. knocked off 1% b/f in 2 weeks. as far as ephedrine goes, i personally cycle it only twice a yr. but everyone has their own preference. almost went w/clen, but backed down. the curiousity is killing me though. i'll probably try a "cautious" cycle of it...gotta try it. everyone talks it up.