Neuropharmacological properties of piracetam derivatives
Ostrovskaia, R.U.; Molodavkin, G.M.; Trofimov, S.S.; Popova, R.I.; Gudasheva, T.A.
Biulleten' Eksperimental'noi Biologii i Meditsiny 94(12): 62-65
1982
ISSN/ISBN: 0365-9615 PMID: 6891272 Document Number: 185800
Piracetam and its 8 derivatives were studied in experiments on mice and rats with the use of standard neurotropic tests and nootropic activity tools. The electrophysiological index of GABA-ergic inhibition (the recovery cycle of cortical evoked potentials) was also investigated. It was shown that piracetam derivatives as well as piracetam itself have a pronounced antihypoxic activity and prevent the amnestic effect of electroshock in experimental passive avoidance. Most of them were inactive according to the standard neurotropic test. Piracetam derivatives with a hydrazide grouping in the side chain combine nootropic activity and a specific stimulant effect, while the derivatives possessing a phenyl ring combine nootropic and depressant activity.