Synonyms: 6,11-dihydro-11-(1-methylpiperidin-4-ylidene)-5H-benzo[5,6]cyclohepta[1,2-b]pyridine dimaleate;Trinalin;6,11-Dihydro-11-(1-methyl-4-piperidylidene)-5H-benzo(5,6)cyclohepta(1,2-b)pyridine maleate (1:2);Optimine (TN);Azatadinum [INN-Latin];Azatadine maleate (USP);Azatadine maleate [USAN];Azatadina [INN-Spanish];5H-Benzo[5,6]cyclohepta[1,2-b]pyridine,6,11- dihydro-11-(1-methyl-4-piperidinylidene)-,(2Z)-2-butenedioate (1:2);