DEAR MAYO CLINIC: My 19-year-old son has hyperthyroidism due to toxic thyroid nodules. He's very thin and has a high resting heart rate. He's been asked to go on methimazole (Tapazole) until he has a thyroidectomy, but he is concerned about side effects. Is it safe? Are there options rather than surgery? What are the risks of doing nothing for now?
Chicago Tribune by Bryan McIver