3 3 5 5 tetraiodo l thyronine, 3 5 3 5 tetraiodo l thyronine, 4 4 hydroxy 3 5 diiodophenoxy 3 5 diiodo l phenylalanine
For use alone or in combination with antithyroid agents to treat hypothyroidism, goiter, chronic lymphocytic thyroiditis, myxedema coma, and stupor.