ventricular tachycardia
"Great medicine to control atrial fibrillation and ventricular tachycardia but a lot of side effects. I got hyperthyroidism because of that and since I have a defibrillator my heart rate was jumping from 100 to 200b/sec. I got shocked like 17 times while going to work (because heart was going over 200 beats/sec). Then I used other medicines but no luck. Now I am back on Amiodarone because I got shocked and passed out and had a stroke. Doctor said there is no other option but amiodarone and hope for the heart transplant."