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Amiodarone has been used both in the treatment of acute life-threatening arrhythmias as well as the long-term suppression of arrhythmias. [13] Amiodarone is commonly used to treat different types of abnormal heart rhythms, such as atrial arrhythmias (supraventricular arrhythmias) and ventricular arrhythmias.
Amiodarone induced thyrotoxicosis (AIT) is a form of hyperthyroidism due to treatment with antiarrhythmic drug, amiodarone. Amiodarone induced thyroid dysfunction more commonly results in hypothyroidism , estimated to occur in 6-32% of patients, whereas hyperthyroidism from amiodarone use is estimated at 1-12%. [ 1 ]
Amiodarone. Amiodarone works in many ways. It blocks sodium, potassium, and calcium channels, as well as alpha and beta adrenergic receptors. Because of its multiple actions, amiodarone causes QT prolongation but TdP is rarely observed. Dofetilide; Ibutilide
The Jod-Basedow effect (also Jod-Basedow syndrome and Jod-Basedow phenomenon) is hyperthyroidism following administration of iodine or iodide, [1] either as a dietary supplement, for iodinated contrast medical imaging, or as a medication (mainly amiodarone).
Those who wish to have further treatment can choose to take long term antiarrhythmic medication. The first line drugs are calcium channel antagonists and beta blockers, with second line agents including flecainide, amiodarone, and occasionally digoxin. These drugs are moderately effective at preventing further episodes but need to be taken long ...
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Amiodarone inhibits peripheral conversion of thyroxine to triiodothyronine; also interferes with thyroid hormone action. [citation needed] Lithium inhibits thyroid hormone release. [citation needed] Phenobarbitone, phenytoin, carbamazepine, rifampin induce metabolic degradation of triiodothyronine (T 3) and thyroxine (T 4). [citation needed]