Why is Synthroid prescribed?

Synthroid, a thyroid hormone, is used to treat hypothyroidism, a condition where the thyroid gland does not produce enough thyroid hormone. Without this hormone, the body cannot function properly, resulting in poor growth, slow speech, lack of energy, weight gain, hair loss, dry thick skin, and increased sensitivity to cold. When taken correctly, Synthroid reverses these symptoms. Synthroid also is used to treat congenital hypothyroidism (cretinism) and goiter (enlarged thyroid gland).

Synthroid is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

How should Synthroid be used?

Synthroid comes as a tablet to take by mouth. It usually is taken as a single dose before breakfast every day. To control the symptoms of hypothyroidism, you probably will need to take this medicine for the rest of your life. It may take about 2 weeks before you notice any change in your symptoms. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take Levothyroxine exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor. Continue to take Synthroid even if you feel well. Do not stop taking Levothyroxine without talking to your doctor.