Neuroleptic malignant syndrome is a severe and potentially fatal react
ion to neuroleptic drugs. Treatment requires withdrawal of the neurole
ptic agent, metabolic and cardiovascular support, physical cooling and
treatment with dantrolene sodium and bromcriptine mesylate. We report
a therapeutic success of plasmapheresis in a case of neuroleptic mali
gnant syndrome in which conventional therapy had failed. We postulate
that plasmapheresis may prove to be a useful tool in treating this fre
quently fatal disease.