Geodon is used to treat schizophrenia and bipolar disorder.
Geodon has a greater capacity to increase QT/QTc interval compared to several other antipsychotics; an increased QT/QTc interval is associated in some other drugs with bringing about a potentially fatal polymorphic ventricular tachycardia, and sudden death.
Full prescribing information is available at:
http://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?id=8337