Antithyroid drugs are medications designed to treat hyperthyroidism, a condition characterized by an overactive thyroid gland. The thyroid gland plays a crucial role in regulating the body's metabolism by producing hormones. Hyperthyroidism occurs when the thyroid gland produces an excess of thyroid hormones, leading to symptoms such as weight loss, increased heart rate, and anxiety. Antithyroid Drugs work by inhibiting the production of these hormones, helping to restore a balance in thyroid function. Common antithyroid drugs include methimazole and propylthiouracil, which are often prescribed to manage hyperthyroid conditions.