Hypothyroidism sufferers and doctors: what is your opinion about adding Cytomel (T3) to your medication routine?

For this discussion I am not very interested in Armour Thyroid, which I know some people have had great success taking.

I am considering requesting from my doctor the addition of Cytomel, because my thyroid is difficult to regulate and maybe at least my T3 will stay more stable. I have been told by women that it greatly improved their symptoms.

I have never heard anything negative about taking T3, but there must be some negatives, so I would really like the hear those things too. I also wonder if once you start taking it can you never go back to just taking Synthroid? Does your body lose the ability to convert to T3?