As many as 90% of people taking Levothyroxine [synthroid] may have been unnecessarily prescribed medications for hypothyroidism. About 23 million Americans take levothyroxine, making it one of the most prescribed drugs in the country 1. To test for hypothyroidism (hypothyroidism), clinicians measure levels of thyroid-stimulating hormone (TSH) and free thyroxine (free T4). However, the new […]