It is marketed as Euthyrox®  25µg, 50µg and 100µg of 100 tablets per pack.

Levothyroxine sodium is indicated for the treatment of euthyroid goitre, particularly in adults where iodide is not indicated, prophylaxis of goitre relapse after surgery for euthyroid goitre, depending on the postoperative hormonal status, thyroid hormone replacement in thyroid underactivity, in thyroid cancer for suppression of tumour recurrence, concomitant therapy during antithyroid drug therapy of hyperthyroidism after normal function has been achieved, and for diagnosis within the scope of the thyroid suppression test.