SPL Set ID: bcf10012-8920-4737-92f5-7401ee0c5894
1 drug(s) with this SPL Set ID
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. Levothyroxine (T4) sodium has an empirical formula of C 15 H 10 I 4 N NaO 4 •H 2 O, molecular weight of 798.85 (anhydrous), and structural formula as shown: Levothyroxine sodium tablets USP for oral administration are supplied in the following strengths: 125 mcg. Each levothyroxine sodium tablets USP contains the inactive ingredients corn starch, croscarmellose sodium, magnesium stearate, mannitol and sodium bicarbonate. Table 9 provides a listing of the color additives by tablet strength: Table 9. Levothyroxine Sodium Tablets USP Color Additives Levothyroxine sodium tablet USP meets USP Dissolution Test 2. Strength (mcg) Color additive(s) 125 FD&C Yellow No. 6 Aluminum Lake*, FD&C Blue No. 1 Aluminum Lake, FD&C Red No. 40 Aluminum Lake, FD&C Blue No. 2 Aluminum Lake *Note – FD&C Yellow No. 6 Aluminum Lake is peach in color. image-1