Manfredi G et al. – A Caucasian, male, young adult with recurrent agitated depression and suicidal ideation received lithium and oral olanzapine. His white blood cell count was normal at that time. Due to unsatisfactory response, he received 4 mg/day risperidone. While symptoms improved, leukopenia emerged, specifically directed towards neutrophils. Upon risperidone discontinuation, white blood cell count returned to reference values within 1 week. [more...]