Although most doctors recommend synthetic thyroxine, natural extracts containing thyroid hormone derived from the thyroid glands of pigs are available. These products contain both thyroxine and triiodothyronine. Synthetic thyroid medications contain thyroxine only, and the triiodothyronine your body needs is derived from the thyroxine.
Extracts are available by prescription only and shouldn't be confused with the glandular concentrates sold in natural foods stores. These products aren't regulated by the Food and Drug Administration, and their potency and purity isn't guaranteed.
Dec. 01, 2012
- Hypothyroidism. The American Thyroid Association. http://www.thyroid.org/what-is-hypothyroidism. Accessed Aug. 22, 2012.
- Hypothyroidism. National Endocrine and Metabolic Diseases Information Services. http://www.endocrine.niddk.nih.gov/pubs/hypothyroidism/. Accessed Aug. 23, 2012.
- Halter JB, et al. Hazzard's Geriatric Medicine and Gerontology. 6th ed. New York, N.Y.: The McGraw-Hill Companies; 2009. http://www.accessmedicine.com/content.aspx?aID=5133014&searchStr=hyperthyroidism. Accessed Aug. 23, 2012.
- Chakera AJ, et al. Treatment for primary hypothyroidism: Current approaches and future possibilities. Drug Design, Development and Therapy. 2012;6:1.
- Longo DL, et al. Harrison's Online. 18th ed. New York, N.Y.: The McGraw-Hill Companies; 2012. http://www.accessmedicine.com/content.aspx?aID=9140510. Accessed Aug. 23, 2012.