Antipsychotics can cause prolongation of QTc intervals
=> Therefore, good to have a baseline EKG in pts over 50 y/o

Physicians should avoid combining antipsychotic medications with other medications that prolong the corrected QT interval (e.g., classes I and III antiarrhythmic drugs, tricyclic antidepressants, some antibiotics; Site: http://www.aafp.org/afp/2010/0301/p617.html