well if your gonna dont stay on it too long or u can permanantly shut down your thyroid. cytomel or t3 should be used starting off lightl 25mcg a day and building up to no more than 100mcg imo. taper down when coming off as well so yor body doesn't crash faster. not a believer in tapering with steroids but with this i am. don't go on for more than 6 weeks.