Similar names: L-Tyrosine, O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-, sodium salt (1:1); L-Tyrosine, O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-, monosodium salt (9CI); Thyroxine, monosodium salt, L- (8CI); Berlthyrox; Dathroid; Droxine; Eferox; Elthyrone; Elthyroxine; Eltroxin; Euthyrox; Eutirox; L-Thyroxin Henning; L-Thyroxine monosodium salt; L-Thyroxine sodium; L-Thyroxine sodium salt; Laevoxin; Letrox; Letter; Levaxin; Leventa; Levo-T; Levolet; Levoroxine; Levothroid; Levothyrox; Levothyroxine sodium; Levotirox; Levotiroxina; Levoxyl; Monosodium thyroxine; NSC 259940; Novothyrox; Oroxine; Puran T 4; Sodium L-thyroxine; Sodium levothyroxine; Sodium thyroxin; Sodium thyroxinate; Sodium thyroxine; Synthroid; Synthroid sodium; Synthrox; T 4KP; T4 Montpellier 100; Thevier; Throxinique; Thyradin; Thyradin S; Thyrax Duotab; Thyrex; Thyro 4; Thyrosit; Thyroxevan; Thyroxine sodium; Thyroxine sodium salt; Tiroidine; Tirosint; Unithroid; Levothyroxine Sodium Salt