The generic name of Eugenol is Levothyroxine Sodium Tablets, and according to the clinical pre-marketing test, its old and new packages are bioequivalent and have the same efficacy, and there is no essential difference. The main ingredient of Levothyroxine Sodium Tablets is Levothyroxine Sodium, which can be used for the long-term replacement therapy of congenital hypothyroidism and hypothyroidism caused by various reasons, and can also be used for the suppressive treatment of chronic lymphatic thyroiditis, simple goiter and thyroid cancer after surgery. Overdosage of this product may cause angina pectoris, arrhythmia, headache, insomnia, tremor, diarrhea, vomiting and other adverse reactions, usually in the reduction of the dosage or discontinuation of the drug can be disappeared on their own, but for the allergy to this drug, untreated adrenal hyperalgesia, acute myocardial infarction should be contraindicated. This product is a prescription drug, the specific use should also strictly follow the doctor’s instructions.