An element that is used to treat certain forms of hyperthyroidism is called .

Iodine-131 is a radioactive form of iodine that is taken up by the thyroid and can be used to destroy overactive thyroid tissue. Thyroxin is a thyroid hormone, while insulin and glucagon are hormones that regulate blood sugar. Therefore, iodine-131 is the element used to treat certain forms of hyperthyroidism.

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