[Kordaron and functional disorders of the thyroid gland]

The paper presents a brief review of literature data on cordaron action on thyroid function under a prolonged schedule of its use, and a description of 4 cases of thyrotoxicosis developed by males after 2-10 years of cordaron maintenance for paroxysms of cardiac fibrillation in a dose of 200-600 mg. Probability of thyrotoxicosis necessitates an assessment of thyroid function when planning long-term treatment with cordaron.