Thyroid hormones are produced naturally in the body by the thyroid gland. They are important
for maintaining normal energy and metabolism.
For a variety of reasons, the body may not produce enough thyroid hormone on its own. In
these cases, medication is taken to replace the body's natural thyroid hormones. Thyroid hormones are
also used to prevent and treat goiter (growth or enlargement of the thyroid gland) and along with
surgery and radiation therapy in the treatment of certain thyroid cancers.
Thyroid may also be used for purposes other than those listed in this medication guide.