Hyperthyroidism is referred to as hyperthyroidism. Commonly used medications for hyperthyroidism include thiourea drugs (e.g., propylthiouracil, methylthiouracil) and imidazole drugs (e.g., carbimazole, methimazole). The specific dosage and usage of the drugs vary depending on the condition and should be decided by a medical professional after assessing the condition. The mechanism of action of antithyroid drugs is to inhibit the organicization of iodine and the coupling of thyroid tyrosine, reducing the synthesis of thyroid hormones. However, they do not inhibit the hormones already synthesized in the thyroid gland. Note that antithyroid drugs may cause adverse reactions such as granulocyte deficiency, rash, toxic liver disease, vasculitis, and fetal skin dysplasia. If hyperthyroidism is diagnosed, early and standardized treatment is recommended to minimize the adverse effects of the disease.