Levothyroxine sodium

11 DESCRIPTION Levothyroxine sodium tablets, USP is L-thyroxine (T4) and contains synthetic crystalline L-3,3’,5,5’-tetraiodothyronine sodium salt. Synthetic T4 is chemically identical to that produced in the human thyroid gland. 86 (anhydrous), and structural formula as shown: Levothyroxine sodium tablets, USP for oral administration are supplied in the following strengths: 25 mcg, 50 mcg, 75 mcg, 88 mcg, 100 mcg, 112 mcg, 125 mcg, 137 mcg, 150 mcg, 175 mcg, 200 mcg, and 300 mcg.

Each levothyroxine sodium tablet contains the inactive ingredients microcrystalline sodium, light magnesium oxide, sodium starch glycolate and sodium stearyl fumarate. Levothyroxine sodium tablets, USP contain no ingredients made from a gluten-containing grain (wheat, barley, or rye). Table 9 provides a listing of the color additives by tablet strength: Table 9.