[Risperidone after clozapine in therapy refractory schizoaffective psychosis--a case report].

Recently, American authors pronounced the hypothesis that Clozapine-response may be considered as a predictor of response to atypical neuroleptic. We report the history of a schizoaffektive patient unresponsive to butyrophenone and phenothiazine neuroleptic who was first treated with Clozapine and then with Risperidone and who reacted very differently to these atypical neuroleptic.