The generic name of Euthyrox is Levothyroxine Sodium Tablets, and long-term consumption of Levothyroxine Sodium Tablets does not usually lead to leukopenia. Levothyroxine sodium tablets belong to the thyroid hormone class of drugs, can be used for the treatment of non-toxic goiter (thyroid function is normal), hypothyroidism replacement therapy as well as suppression of thyroid cancer postoperative treatment, etc.; allergy to the drug, non-hypothyroidism heart failure, tachyarrhythmia, and the recent heart attack and so on patients are prohibited. Long-term standardized use of levothyroxine sodium tablets generally do not produce significant adverse phenomena, but if long-term overdose may cause symptoms of hyperthyroidism, such as excessive sweating, palpitations, hand tremors, weight loss, insomnia, etc., generally does not lead to leukopenia. If the white blood cell value is abnormal after taking levothyroxine sodium tablets, it is recommended to go to the hospital, clarify the cause of the disease, and timely treatment under the guidance of the doctor.