Thyroxine sodium tablets generally refers to levothyroxine sodium tablets, which are used to supplement thyroid hormones. The main ingredient of levothyroxine sodium tablets is levothyroxine, which is mainly used for hormone replacement therapy for hypothyroidism, and also used for suppressive therapy after thyroid cancer surgery, and adjuvant therapy for hyperthyroidism treated with antithyroid drugs. Taking Levothyroxine Sodium Tablet, in individual cases, due to dose intolerance or overdose, symptoms of hyperthyroidism, such as trembling hands, palpitations, arrhythmia, excessive sweating, diarrhea, weight loss, insomnia, irritability, etc., may occur. Note that this drug is contraindicated in patients with hypersensitivity to this drug, tachyarrhythmia, untreated hypoadrenalism, pituitary insufficiency and thyrotoxicosis, acute myocardial infarction. Patients should take this drug under the supervision of a medical professional.