Synonyms: 1H-Benzo[6,7]cyclohepta[1,2,3-de]pyrido[2,1-a]isoquinolin-3-ol,3-(1,1-dimethylethyl)-2,3,4,4a,8,9,13b,14-octahydro-, (3a,4aa,13bb)- (9CI); 1H-Benzo[6,7]cyclohepta[1,2,3-de]pyrido[2,1-a]isoquinolin-3-ol,3-(1,1-dimethylethyl)-2,3,4,4a,8,9,13b,14-octahydro-, (3a,4aa,13bb)-(?à)-; (?à)-Butaclamol