Can I take Euthyrox during pregnancy?

Jul 10, 2025 Source: Cainiu Health

Dr. Zhang Lu

Introduction

Levothyroxine sodium tablets, also known as Euthyrox, can generally be taken during pregnancy. However, the dosage must be strictly controlled according to medical advice, and thyroid function should be regularly monitored. During pregnancy, due to increased demand for thyroid hormones, patients with existing hypothyroidism or pregnant women newly diagnosed with hypothyroidism need to maintain normal thyroid function through medication to avoid adverse effects on fetal development.

Levothyroxine sodium tablets are usually referred to as Euthyrox. Generally speaking, levothyroxine sodium tablets can be taken during pregnancy, but the dosage must be strictly controlled according to medical advice, and thyroid function should be monitored regularly. The detailed explanation is as follows:

Levothyroxine sodium tablets are primarily used to treat hypothyroidism. During pregnancy, due to an increased demand for thyroid hormones, pregnant women with pre-existing hypothyroidism or those newly diagnosed with hypothyroidism need to take medication to maintain normal thyroid function, to avoid any adverse effects on fetal development. Levothyroxine sodium is a synthetically produced thyroid hormone that has the same structure as the hormone naturally secreted in the human body. When used correctly, it is safe for the fetus. At the same time, this medication is quite important for the development of the fetal nervous system. Untreated hypothyroidism may lead to miscarriage, premature delivery, or impaired fetal intelligence. Therefore, during pregnancy, if a pregnant woman is diagnosed with hypothyroidism, she can take levothyroxine sodium tablets under the guidance of a physician.

Thyroid function should be monitored regularly during pregnancy, and a balanced diet should be maintained, avoiding excessive iodine intake and spicy foods, to support overall health.

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