APA Dictionary of Psychology

n. an atypical antipsychotic that is used for the treatment of schizophrenia and of acute manic or mixed episodes associated with bipolar disorders. It may prolong the Q-T interval of the cardiac cycle (see electrocardiographic effect) and therefore should not be taken by patients with abnormal heart rhythms or by those who have had a recent heart attack or are taking antiarrhythmic drugs. Common side effects include orthostatic hypotension and sedation. U.S. trade name: Geodon.