Levothyroxine Sodium

Molecular Formula: C15H12I4NNaO5 C15H11I4NO4 C15H11I4NNaO4
CAS Number: 25416-65-3 55-03-8
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Levothyroxine, also known as L-thyroxine, is a manufactured form of the thyroid hormone, thyroxine. It is used to treat thyroid hormone deficiency including the severe form known as myxedema coma. It may also be used to treat and prevent certain types of thyroid tumors. It is not indicated for weight loss. Levothyroxine is used to treat an underactive thyroid (hypothyroidism). It replaces or provides more thyroid hormone, which is normally produced by the thyroid gland. Low thyroid hormone levels can occur naturally or when the thyroid gland is injured by radiation/medications or removed by surgery. Levothyroxine is FDA approved for use in dogs and is only available through a veterinary prescription. Thyroxine Soduim Salt is one of the thyroid hormones involved in the maintenance of metabolic homeostasis. Synthesized and stored as amino acid residues of thyroglobulin, the major protein component of the thyroid follicular colloid. Synthesis and secretion are regulated by the pituitary hormone (TSH). Deiodinated in peripheral tissues to the active metabolite, liothyronine.