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;L-T4;Levothyroxin;Levothyroxine;LT4;O-(4-Hydroxy-3,5-diiodophenyl)-3,5-diiodo-L-tyrosine;T4;Forthyron;L-Thyroxine;O-(4-Hydroxy-3,5-diidophenyl)-3,5-diiodo-L-tyrosine;3,5,3'5'-Tetraiodo-L-thyronine;(-)-Thyroxine;3,3',5,5''-Tetraiodo-L-thyronine;3,5,3',5'-Tetraiodothyronine;D-Thyroxine;DL-Thyroxin;Henning;L-3,5,3',5'-Tetraiodothyronine;L-Thyroxin;Laevothyroxinum;Levothroid;Levothyroxine sodium;Levothyroxinum;Levoxyl;Prestwick_548;Synthroid;Tetraiodothyronine;Tetramet;THX;Thyratabs;Thyrax;Thyreoideum;Thyroxin;Thyroxinal;Thyroxine I 125;Thyroxine iodine;Allphar brand OF levothyroxine sodium;Berlthyrox;Delalande, levothyroxin;Dexnon;Eferox;Eltroxin;Kern brand OF levothyroxine sodium;L-Thyrox;L-Thyroxin henning;L-Thyroxin beta;L-Thyroxine roche;Levothyroxin deladande;Lévothyrox;Merck lipha santé brand OF levothyroxine sodium;Nourypharma brand OF levothyroxine sodium;Oroxine;Aventis brand OF levothyroxine sodium;Euthyrox;Eutirox;Forest brand OF levothyroxine sodium;Genpharm brand OF levothyroxine sodium;GlaxoSmithKline brand OF levothyroxine sodium;Goldshield brand OF levothyroxine sodium;LThyroxin henning;Levo-T;Sanofi synthelabo brand OF levothyroxine sodium;Sigma brand OF levothyroxine sodium;Synthrox;Thevier;Watson brand OF levothyroxine sodium;Berlin chemie brand OF levothyroxine sodium;Delalande brand OF levothyroxine sodium;Eltroxine;Hexal brand 2 OF levothyroxine sodium;L Thyroxine roche;Novothyral;Tiroidine;Vortex brand OF levothyroxine sodium;Abbot brand OF levothyroxine sodium;Berlin-chemie brand OF levothyroxine sodium;Byk brand OF levothyroxine sodium;Deladande, levothyroxin;GlaxoWellcome brand OF levothyroxine sodium;Henning berlin brand OF levothyroxine sodium;Hexal brand 1 OF levothyroxine sodium;L Thyrox;L Thyroxin henning;L Thyroxin beta;L Thyroxine;LThyroxin beta;Leo, tiroxina;Levo T;LevoT;Levothyroid;Levothyroxin delalande;Levoxine;Merck brand OF levothyroxine sodium;Monarch brand OF levothyroxine sodium;Mova brand OF levothyroxine sodium;Novothyrox;O-(4-Hydroxy-3,5-diiodophenyl) 3,5-diiodo-L-tyrosine;O-(4-Hydroxy-3,5-diiodophenyl)-3,5-diiodotyrosine;Roche brand OF levothyroxine sodium;Rudefsa brand OF levothyroxine sodium;Sodium levothyroxine;T4 Thyroid hormone;Thyroid hormone, T4;Tiroxina leo;Unithroid;Betapharm brand OF levothyroxine sodium