Synonyms: Spiro[naphthalene-1(2H),3'-pyrrolidine]-2',5'-dione,1'-[2-(dimethylamino)propyl]-3,4-dihydro-, monohydrochloride, (R*,R*)- (9CI);Spiro[naphthalene-1(2H),3'-pyrrolidine]-2',5'-dione,1'-[2-(dimethylamino)propyl]-3,4-dihydro-, monohydrochloride, (R*,R*)-(?à)-