Thyroid hormones, thyroxine and triiodothyronine, are used to treat hypothyroidism, which is a deficiency in the hormones produced by the thyroid.
Regular Websites
Contains details about drugs that may cause hypothyroidism as well as those which are effectively used in thyroid replacement therapy, and details about many of those hormones. - My Thyroid
http://www.mythyroid.com/drugs.html
Thyroid Drugs & Various Treatments for Thyroid Conditions
Addresses nearly every topic about thyroid drugs which can be addressed, including natural thyroid treatment, thyroid hormone replacement drugs, and troubleshooting the hormone replacement treatment. - Thyroid Drugs & Various Treatments for Thyroid Conditions
http://thyroid.about.com/od/thyroiddrugstreatments/Thyroid_Drugs_Various_Treatments_for_Thyroid_Conditions.htm