I was on Amiodaron when I developed AFIB in early 2020. Due to Covid and not having non-essential hospital visits, they were not considering cardioversion. After about a year on Amiodaron (still in AFIB), I developed severe bradycardia and breathing issues. I was immediately taken off the Amiodaron, and a pulmonologist determined that I had severe lung toxicity from it. I researched and learned that lung toxicity is not uncommon with Amiodaron. My heart rate was in the 30's, and I eventually received a pacemaker. Since then I have had two more episodes of AFIB and have been on Sotalol and on Flecainide (neither of which caused me any problems). The Flecainide has not resolved my AFIB, so I am scheduled for a cardioversion. While I have often been told that Amiodaron is the "gold standard" for rhythm disorders, I would suggest that you also get your lungs periodically checked, as well as your liver. I was on a very high dosage; perhaps the high dosage was my issue. Good luck!