[Amiodarone-induced thyrotoxicosis: a diagnostic and therapeutic challenge].

Amiodaron is a widely used antiarrhytmic drug in a number of cardiac conditions. The most common side effects affect the thyroid gland (14-18% of treated patients) resulting in hypothyroidism or hyperthyroidism. We describe a complex case of amiodaron-induced thyrotoxicosis (AIT) and discuss the pathogenesis of the different subtypes (AIT I, II and mixed forms) and the diagnostic and therapeutic challenges in such patients.