Psychotropic medications have been known to cause cardiac conduction disturbances. Not much is known about the cardiovascular side effects of newer atypical antipsychotics such as aripiprazole. A case of a 13-year-old girl with schizophrenia is presented. An analysis of the presented patient's clinical history indicates the need for a detailed analysis of the severe arrhythmia induced by aripiprazole. This presented case report contains valuable guidelines that can be of assistance in the treatment of patients with aripiprazole.