Research from Germany finds that people with schizophrenia or schizoaffective diagnoses given multiple medications – an antipsychotic plus a benzodiazepine or more than one other psychotropic medication – faired more poorly than people given one antipsychotic. The authors note that the direction of causality is not established. It is not known whether multiple medications made people worse or merely fail to help people who were doing worse to do better. Results appear in Acta Psychiatrica Scandinavica.