The generic name of Eugenol is Levothyroxine Sodium Tablet, after taking it to check the T4 is high, it is considered that it may be caused by hyperthyroidism in the process of medication, it is recommended to take medication under the guidance of a doctor. Levothyroxine Sodium Tablet is mainly used for the replacement therapy of hypothyroidism, if you do not pay attention to the dosage in the process of medication, or not according to the doctor’s requirements, it may cause hyperthyroidism, so through the examination may be found to be high T4. When taking levothyroxine sodium tablets, you should know that it is forbidden for those who are allergic to the drug, have conditions such as heart failure or tachyarrhythmia, and patients with myocardial infarction. Pregnant women and breastfeeding women must be closely monitored during thyroid replacement therapy to avoid causing too low or too high thyroid function, which may cause adverse effects on the fetus and infant. If you need to take levothyroxine sodium tablets for a long period of time, you should do so under the guidance of a professional physician, and should not take the medication without authorization.