Hyperthyroidism is short for hyperthyroidism. Commonly used medications for patients with hyperthyroidism include thiourea drugs (e.g., propylthiouracil, methylthiouracil), and imidazole drugs (e.g., carbimazole, methimazole). 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. Hyperthyroidism patients under the guidance of professional endocrinologists regulate the use of anti-thyroid drugs for treatment, so as not to lead to serious consequences.