Antithyroid medications are drugs used to treat conditions like hyperthyroidism, where the thyroid gland produces too much hormone. These medications work by inhibiting the production of thyroid hormones, helping to restore normal hormone levels in the body. Common examples include methimazole and propylthiouracil. Patients taking antithyroid medications may experience side effects, such as rash or liver issues, and regular monitoring is essential. Treatment duration varies, and some individuals may eventually require other interventions, such as radioactive iodine therapy or surgery, to manage their condition effectively.