pl. n. a group of chemically related compounds used as *antithyroid drugs. They exert their action on thyroid tissue by inhibiting the iodination of *thyroglobulin, which is an essential step in the manufacture of thyroid hormones.
drugs that are used to counteract the excessive production and release of thyroid hormones in thyrotoxic states. The main agents are *carbimazole and *propylthiouracil. See also thionamides.... antithyroid drugs
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