Treatment of hypothyroidism, which results from an underactive thyroid gland, should be individualized and consideration should be given to alternatives to the first-line therapy, including desiccated thyroid extract and combination therapy to replace the body’s two main thyroid hormones, thyroxine (T4) and triiodothyronine (T3). Results of their new randomized clinical study are being presented at ENDO 2021, the Endocrine Society’s annual meeting.