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Synonyms: T4, L-Thyroxine, Levothyroxine, Eltroxin, Euthyrox, Laevoxin, Levaxin, Levolet, Levothroid, Levoxine, Levoxyl, Novothyrox, Oroxine, Thyratabs, Thyrax, Thyroxin, Unithroid
Levothyroxine, T4 is a replacement for a hormone that is normally produced by your thyroid gland to regulate the body is energy and metabolism. Levothyroxine is given when the thyroid does not produce enough of this hormone on its own