Sulpiride adjunction to clozapine in treatment-resistant schizophrenic patients: a preliminary case series study

Abstract

SummarySix chronic neuroleptic-resistant schizophrenic patients, partial responders to clozapine, were co-administered 600 mg/day of sulpiride (a selective D2 dopaminergic antagonist) as an augmentation to clozapine (a relatively weak D2 blocker), for 10 weeks, open-labeled. A remarkable reduction in positive and negative symptoms was observed in four of the six patients.