Methimazole Tablet is an antithyroid drug that inhibits the synthesis of thyroid hormones and can be used in the treatment of hyperthyroidism (hyperthyroidism), preoperative preparation of hyperthyroidism patients, and adjunctive treatment of hyperthyroidism patients when undergoing radioactive iodine therapy, among other conditions. Therefore, Methimazole tablets are not hormonal drugs. Treatment with methimazole tablets is contraindicated in patients with hypersensitivity to this drug, moderate to severe disorders of blood cell counts, and severe myelosuppression after receiving methimazole tablets. Adverse reactions such as granulocyte deficiency, allergic reactions, hepatic impairment and other adverse reactions may occur after administration of the drug. Patients who need to take methimazole tablets treatment should be under the guidance of a doctor.