Which of the following is usually the drug of choice for treatment of hyperthyroidism in patients older than 21 years?

Question

Quizplus · Accepted Answer

¹³¹I is usually the drug of choice for patients over 21 years.It is taken internally and sequestered by the gland;localized destruction of thyroid tissue results.Both ¹³¹I and thyroidectomy usually result in hypothyroidism because a dose that produces an inadequate effect would require repeating the procedure.Antithyroid drugs,such as propylthiouracil and methimazole,are used in patients who cannot tolerate surgery or treatment with ¹³¹I.These drugs inhibit the iodinization of tyrosine moieties and the coupling of the iodotyrosines.Propranolol is often given concomitantly with antithyroid agents.

Which of the Following Is Usually the Drug of Choice