The generic name of Eugenol is Levothyroxine Sodium Tablets. Both women and men may experience side effects such as arrhythmia, palpitations, angina, headache, excessive sweating, vomiting, diarrhea, tremor, weight loss, and spasms of the skeletal muscles with prolonged use of this medication; when taken by pregnant women or lactating mothers, it may adversely affect fetuses or young children, and therefore, hormone levels need to be closely monitored. The drug is a thyroid hormone analog, which has the effect of maintaining normal growth and development, increasing thermogenesis, and promoting metabolism, etc. It can pass the placental barrier and is also excreted in trace amounts in breast milk. The drug can be used for the replacement therapy of various causes of hypothyroidism such as congenital hypothyroidism (cretinism); for the suppression and replacement therapy of chronic lymphatic thyroiditis, simple goiter, and thyroid cancer after surgery; and for the diagnosis of hyperthyroidism. Persons with hypopituitarism or hypoadrenocorticism should be treated with adrenocorticotropic hormone for several days before using the drug. Contraindicated in the following cases: hypersensitivity to the drug and the components contained in it, patients with tachyarrhythmias, patients with non-hypothyroid heart failure, patients with recent myocardial infarction. Use with caution in the following cases: patients with myocardial ischemia or diabetes, elderly patients with cardiovascular disease. If you need to use the drug patients, please under the guidance of a doctor, strictly comply with the doctor’s instructions to take medication, do not self-medication.