Risperidone appears safe in patients with antipsychotic-induced blood dyscrasias.

Two cases are reported who developed blood dyscrasias, involving neutropenia and thrombocytopenia respectively, after treatment with phenothiazine and butyrophenone antipsychotics. A subsequent good therapeutic response was obtained with risperidone. It is suggested that risperidone may be considered as an alternative when blood dyscrasias occur with classic antipsychotics.