Eugenol and that is, levothyroxine sodium tablets, there is no must be 10 major contraindications, the specific contraindications are as follows, and taking the drug should be under the guidance of a doctor. Contraindications to taking levothyroxine sodium tablets: allergy to the product and excipients; untreated hypoadrenalism; untreated pituitary insufficiency; untreated thyrotoxicosis; acute myocardial infarction; acute myocarditis; acute carditis; acute carditis; during pregnancy, not for use with antithyroid medications for the treatment of hyperthyroidism. Levothyroxine sodium tablets are used for the treatment of non-toxic goiter; taken after thyroidectomy to prevent recurrence of goiter; replacement therapy for hypothyroidism; adjunctive therapy with antithyroid drugs for hyperthyroidism; suppressive therapy and thyroid suppression test after thyroid cancer surgery. Symptoms of hyperthyroidism such as arrhythmia, tachycardia, angina, headache, flushing, fever, vomiting, menstrual disorders, insomnia, excessive sweating, and weight loss may occur with overdose of levothyroxine sodium tablets. When abnormal thyroid function occurs, it is recommended to seek immediate medical attention and use the medication as prescribed.