NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Ace your North American Pharmacist Licensure Examination (NAPLEX) with our comprehensive practice test. Features include interactive flashcards, multiple-choice questions, with detailed hints and explanations. Fast-track your pharmacy career today!

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Which of the following drugs is NOT known to cause hypothyroidism?

Lithium
Carbamazepine
Iodine
Amiodarone

The correct answer is: Iodine

Iodine is not known to cause hypothyroidism; in fact, it is an essential nutrient needed for the production of thyroid hormones. The other options listed are known to be associated with causing hypothyroidism. A. Lithium is known to be associated with hypothyroidism as it interferes with the release of thyroid hormones. B. Carbamazepine can cause hypothyroidism by altering the regulation of thyroid hormones. D. Amiodarone is a well-known medication associated with causing hypothyroidism due to its high iodine content and its direct toxic effect on the thyroid gland. Therefore, among the options provided, iodine is not known to cause hypothyroidism.