Thyroid hormones help regulate the way the body uses energy. You need thyroid hormone replacement when you do not have enough thyroid hormones in your blood (hypothyroidism). Depending on the cause of your hypothyroidism, you may need to take thyroid hormones for the rest of your life.
Thyroid hormones are usually taken by mouth. How much you need depends on your age, your body weight, and whether you are pregnant.
Thyroid hormone replacement is the only way to treat hypothyroidism. For most people, taking a thyroid hormone medicine:
People who take thyroid hormones need to have their blood checked regularly to make sure that they are taking the correct dose of replacement hormone. Children, pregnant women, and older adults may need to have their blood levels checked more often than other people.
For more information about thyroid hormone replacement and hypothyroidism, see the topic Hypothyroidism.
ByHealthwise StaffPrimary Medical ReviewerKathleen Romito, MD - Family MedicineBrian D. O'Brien, MD - Internal MedicineSpecialist Medical ReviewerMatthew I. Kim, MD - Endocrinology
Current as ofJuly 28, 2016
Current as of: July 28, 2016
Kathleen Romito, MD - Family Medicine
& Brian D. O'Brien, MD - Internal Medicine & Matthew I. Kim, MD - Endocrinology
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