Synonyms: 1-(5-Oxohexyl)-3,7-dimethylxanthine, 1-(5-Oxohexyl)theobromine, 3,7-Dihydro-3,7-dimethyl-1-(5-oxohexyl)-1H-purine-2,6-dione, 3,7-Dimethyl-1-(5-oxohexyl)-1H,3H-purin-2,6-dione, 3,7-Dimethyl-1-(5-oxohexyl)xanthine, Agapurin, Agapurin Retard, Azupentat, BL 191, Dimethyloxohexylxanthine, Durapental, NSC 637086, Oxpentifylline, PTX, Pentoxifyllin, Pentoxifylline, Pentoxiphyllin, Pentoxiphylline, Pentoxyfilline, Pentoxyphyllin, Pexal, Rentylin, Torental, Trental, Vasotal, Vazofirin