Synonyms : 4-Hydroxy-3-(3-oxo-1-phenylbutyl)-2H-1-benzopyran-2-one, Aldo Brand of Warfarin Sodium, Aldocumar, Antigen Brand of Warfarin Sodium, Apo-Warfarin, Apotex Brand of Warfarin Sodium, Bailly Brand of Warfarin Sodium, Boots Brand of Warfarin Sodium, Coumadin