Used primarily in the treatment of hyperthyroidism by inhibiting the production of thyroid hormones. It acts by interfering with the incorporation of iodine into thyroglobulin, which is essential for the synthesis of thyroid hormones. This makes it effective in managing conditions like Graves' disease and other forms of overactive thyroid. Additionally, it is sometimes employed in research settings to study thyroid function and related metabolic processes. Its ability to modulate thyroid activity also allows for its use in preparing patients for thyroid surgery or radioactive iodine therapy.