Table 5: Antipsychotropic medications with potential risk for QTc interval prolongation.

Typical antipsychoticsAtypical antipsychotics

Pimozide (Orap)Quetiapine (Seroquel)
Chlorpromazine (Thorazine)Risperidone (Risperdal)
Haloperidol (Haldol)Ziprasidone (Geodon)
Thioridazine (Mellaril)
Mesoridazine (Serentil)

Adapted from http://www.torsade.org/.