Dosing & Administration SYNTHROID® levothyroxine sodium tablets
Dosing & Administration SYNTHROID® levothyroxine sodium tablets The diagnosis of hypothyroidism is confirmed by measuring TSH levels using a sensitive assay (second generation assay sensitivity ≤ 0.1 mIU/L or third generation assay sensitivity ≤ 0.01 mIU/L) and measurement of free-T4. A portion of the conjugated hormone