Olanzapine-induced agranulocytosis in systemic lupus erythematosus: a case report.

Systemic lupus erythematosus (SLE) patients may have psychiatric manifestations during the illness course. Psychotropic agents are indicated in treating these symptoms. Second-generation antipsychotics, such as risperidone, olanzapine and quetiapine, have been thought to be safer than clozapine with regard to the side effect of neutropenia or agranulocytosis. We report a case of SLE who developed agranulocytosis during the treatment with olanzapine for the SLE-related psychiatric symptoms.