Synonyms: 1H-Indolo[3,2,1-de][1,5]naphthyridine-6-carboxylicacid, 3-ethyl-2,3,3a,4-tetrahydro-, methyl ester, monohydrochloride (9CI);1H-Indolo[3,2,1-de][1,5]naphthyridine-6-carboxylic acid,3-ethyl-2,3,3a,4-tetrahydro-, methyl ester, monohydrochloride, (?à)-; OC 340; OM 853; Vinconatehydrochloride