Euthyrox generally refers to levothyroxine sodium tablets, which are used for patients with hypothyroidism, and are recommended to be taken on an empty stomach, before meals, and for most foods, such as milk and oatmeal, it is recommended to be consumed at least 1 hour after the medication has been administered. This is because some foods may affect the absorption rate of Euthyrox, especially high protein and high fiber, etc. Oatmeal is a fiber-rich food, and it is recommended to consume it at least 1 hour after the medication has been administered. Levothyroxine sodium tablets, indications are: treatment of non-toxic goiter (normal thyroid function); after thyroidectomy, prevention of goiter recurrence; replacement therapy for hypothyroidism; adjuvant therapy for hyperthyroidism treated with antithyroid medication; suppressive therapy for thyroid cancer after surgery. There are generally no adverse reactions. If the individual’s tolerated dose is exceeded or if an overdose is administered, particularly due to a rapid increase in dose at the beginning of therapy, the following clinical signs of hyperthyroidism may occur, including: tachycardia, palpitations, and arrhythmia. It is contraindicated in persons who are highly sensitive to the product and its excipients. For patients with relatively free time, it is recommended to take Euthyrox on an empty stomach more than 1 hour beforehand in the morning after waking up and washing up normally, which is currently recognized as the optimal time period for taking Euthyrox, and then eat after 1 hour. If it is inconvenient to take it in the morning, it can be taken before bedtime, but it is better to take it 3 hours after dinner. If synchronized with some special drugs to treat the disease, such as drugs containing aluminum oxide, calcium carbonate, cholestyramine, calcium, etc., it is best to take the interval of 4 hours or more. When you are not sure how to use the medicine or contraindication, you must pay attention to consult the doctor in time, do not blindly use the medicine, so as not to cause the effect of reduced or even the occurrence of adverse reactions.