Synonyms: Berbaman,12-(4-ethoxybutoxy)-6,6',7-trimethoxy-2,2'-dimethyl-;16H-1,24:6,9-Dietheno-11,15-metheno-2H-pyrido[2',3':17,18][1,11]dioxacycloeicosino[2,3,4-ij]isoquinoline,12-(4-ethoxybutoxy)-3,4,4a,5,16a,17,18,19-octahydro-21,22,26-trimethoxy-4,17-dimethyl-,[4aS-(4aR*,16aS*)]-; O-(4-Ethoxybutyl)berbamine