Synonyms: Berbaman,6,6',7,12-tetramethoxy-2,2'-dimethyl-, (1b)-(?à)-; Tetrandrine, (?à)- (8CI);16H-1,24:6,9-Dietheno-11,15-metheno-2H-pyrido[2',3':17,18][1,11]dioxacycloeicosino[2,3,4-ij]isoquinoline,berbaman deriv.; (?à)-Tetrandrine; NSC 91771; dl-Tetrandrine