1. acting against or suppressing the function of the thyroid gland
Usage: medical

1. a drug or substance that inhibits thyroid hormone production or function
Usage: medical

Examples

• The doctor prescribed an antithyroid medication to treat her overactive thyroid.
• Propylthiouracil is a common antithyroid drug used in hyperthyroidism treatment.
• Antithyroid agents work by blocking the synthesis of thyroid hormones.
• She took antithyroid pills for several months before her condition improved.
• The antithyroid effect of certain foods is minimal in most people.
• Antithyroids are often used as a first-line treatment for Graves' disease.