This will be the short version since the story involved the better part of a decade. The first ten years after having my thyroid ablated was sheer hell! Somewhere around the ten-year mark, I learned that there was something called compounded slow-release liothyronine sodium..as opposed to the fast-release liothyronine sodium known mainly as Cytomel. Even the combination brands such as Armour Thyroid, which contains both T4 and T3 of a porcine origin, did not work for me due to the high T3 to T4 ratio in it. Multi-dosing, as often suggested, did not help, not with Armour, nor with any other T3 or T4/T3 med. When I started off on just 3 micrograms of slow-release Liothyronine Sodium (T3), within 24 to 48 hours, I felt I miraculously was given my life back!! I can not be without the addition of the slow-release pure powder Liothyronine sodium. I am extremely sensitive to it and even after an additional decade, I only need 6 micrograms every 12 hours or twice daily to maintain health and quality of life. Not 5 mcg, and not 7 mcg, but precisely six micrograms. I even tried using Cytomel thru one insurance company because it was free of charge, only to become totally off track after a few short weeks which took me months to undo and get back into a steady state after going back onto my one source of Liothyronine that actually works for me. If this were taken away, it would be nothing short of catastrophic for me!