As long as you take care of yourself you should come back easily. It is also good to stay hella strict on diet when coming off to minimize the gains with low metabolism. Mallet at AR has a lot of T3/thyroid posts, here is one on recovery http://forums.anabolicreview.com/showthread.php?t=92331 . He recommended t-100, Now people like gugglesterons (sp) to speed recovery. T3 can be harsh, but I havent read much on anyone being shut down totally and having to take their t3/t4 every day for life, As with anything we do with our bodies, Its good to know how we aer affected by things. Just watch over your temp while on the tri-max, and you should be money. Good luck.