SPL Set ID: 1d6b6f92-89e8-497a-ab23-d0afa2137d1f

Liothyronine sodium tablets, USP contain the active ingredient, liothyronine (L-triiodothyronine or LT 3 ), a synthetic form of a thyroid hormone liothyronine in sodium salt form. It is chemically designated as L-Tyrosine, O-(4-hydroxy-3-iodophenyl)-3,5-diiodo-, monosodium salt. The molecular formula, molecular weight and structural formula of liothyronine sodium are given below. C 15 H 11 I 3 NNaO 4 M.W.672.96 Liothyronine sodium tablets, USP contain liothyronine sodium, USP equivalent to liothyronine in 5 mcg, 25 mcg, and 50 mcg. Inactive ingredients consist of corn starch, croscarmellose sodium, gelatin type B, magnesium stearate, mannitol, and microcrystalline cellulose. liothyronine-structure