The generic name of Eugenol is Levothyroxine Sodium Tablets, if patients have insomnia symptoms after taking Levothyroxine Sodium Tablets, it is usually due to the adverse reaction of the drug, most patients will be relieved of insomnia after a period of time, and the drug can be adjusted if not relieved. Levothyroxine sodium tablets are synthetic thyroxine replacement drugs, which may lead to pharmacological hyperthyroidism after taking them, causing hypermetabolic symptoms, such as hot flashes (a burst of fever), increased heart rate, panic, hand tremors, etc., thus interfering with normal sleep and insomnia. Usually, the above adverse reactions will be relieved, if not may need to adjust the drug according to the actual situation. If the patient has insomnia, it is recommended that the patient consult a doctor for standardized treatment in a timely manner, so as not to threaten the health of the body.