As replacement therapy in hypothyroidism of any aetiology. Replacement therapy should not be instituted in transient hypothyroidism during the recovery phase of subacute Thyroiditis.
For the suppression of Thyroid Stimulating Hormone (TSH) levels in the presence of goitres, nodules and after radiological and/or surgical treatment of Thyroid cancer.
For the suppression of the goitrogenic effects of other drugs such as Lithium.