The generic name of Eugenol is Levothyroxine Sodium Tablets. How long can hypothyroidism be controlled by taking levothyroxine sodium tablets needs to be judged according to the patient’s condition. Generally speaking, if the patient’s TSH is between 5 and 10 mU/L, and accompanied by fatigue and chills, the patient can take levothyroxine sodium tablets in small doses, and the symptoms usually begin to be relieved in about 2 to 3 weeks, and the symptoms of hypothyroidism can be controlled in about 6 to 8 weeks. If TSH is greater than 10mU/L, the dosage time needs to be extended accordingly. It should be noted that after taking levothyroxine sodium tablets for 6~8 weeks, thyroid function needs to be rechecked to adjust the appropriate drug dose. After TSH is reduced to the normal range, it should be rechecked every 6~12 months. Levothyroxine Sodium Tablets are indicated for the replacement therapy of hypothyroidism due to various causes of thyroid hormone deficiency. Adverse reactions include palpitations (rapid heartbeat, often accompanied by panic), angina, insomnia, and excessive sweating. Contraindicated in patients with hypersensitivity to levothyroxine sodium and its excipients. Patients treated with Levothyroxine Sodium Tablets are advised to follow the doctor’s instructions for regular review. At the same time, levothyroxine sodium tablets should be taken and adjusted under the guidance of a professional doctor, do not take drugs without authorization and change the dosage.