Iodine induced thyrotoxicosis--case reports and review of literature.

Iodine in the form of Lugol's iodine is commonly prescribed for the treatment of goitre. Eighteen patients, who had positive history of ingestion of iodine are described. Some of the patients had hyperthyroidism when seen while others had thyrotoxicosis like symptoms after taking iodine. Hyperthyroidism was confirmed clinically, radio-isotopically and by response to treatment. Iodine was incriminated after exclusion of other causes of hyperthyroidism.