[Effect of psychotropic drugs on cerebral Ca-activated ATPase in vitro]

Neuroleptics, particularly haloperidol and perphenazine, inhibit the activity of brain Ca, Mg-ATPase to a greater extent than the antidepressants benactizin and amphetamine. The actomyosin-like Ca-ATPase is far less sensitive to the psychotropic drugs than Ca,Mg-AtPase. It is suggested that the inhibition of brain Ca,Mg-AtPase by neuroleptics may play a certain role in their antipsychotic action.