Abstract From an ethanolic extract of Peschierafuchsiaefolia three quaternary alkaloids have been isolated and their structures determined from their spectral data as 12-methoxy-4-methylvoachalotine, 12-methoxy-4-methylvoachalotine ethyl ester and fuchsiaefoline. Analyses of the 13 C NMR spectra of some sarpagine alkaloids were carried out to confirm the structures of these compounds.