I posted something about this a few months ago but there don't seem to be many people here who have either hypo or hyper thyroidism induced by Amiodarone. Just thought I would bring my current situation up to date.
I was on Amiodarone for about 8 years until April 2013. Prior to my Amiodarone treatment my thyroid function was normal though I had never had it actually tested. However, doctor said TSH level changes were due to Amiodarone and not a result of any malfunction of the thyroid itself.
6 months ago TSH was 16 and I was on 100 mg Levothyroxine. 3 months ago TSH was 0.12 and doctor requested a repeat test, which I have now had. TSH is 0.03 and my range is supposed to be above 0.2. Doctor thinks my thyroid is trying to normalise and has reduced dose to 75 mg and requested another blood test in 2 months with probably reduction to 50 mg. She was not at all surprised to find that I am feeling hyperactive, irritable and not sleeping well and says that my thyroid function may revert to normal over a period of time. Amiodarone takes many months to leave the system completely after it is withdrawn.
Is there anyone else here with experience of coming off Amiodarone and how it affected their Thyroid function?