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L-Thyroxine

Meaning

L-Thyroxine, also known as levothyroxine sodium, is the synthetic levorotatory isomer of the naturally occurring thyroid hormone thyroxine (T4), and it serves as the standard pharmacological replacement therapy for hypothyroidism. This compound is chemically identical to the hormone secreted by the human thyroid gland. Its clinical utility lies in its ability to restore euthyroid status by providing a stable precursor that the body can convert into the active triiodothyronine (T3) as needed. Precise dosing and therapeutic monitoring are crucial for achieving optimal patient well-being and metabolic balance.