What potentially dangerous effect can Haloperidol cause?

Haloperidol can cause QT prolongation, which is a lengthening of the heart’s electrical cycle. This alteration can lead to a serious arrhythmia known as torsades de pointes, characterized by a rapid and unstable heartbeat. QT prolongation is notably concerning because it can increase the risk of sudden cardiac arrest and other life-threatening heart conditions.

Monitoring the QT interval in patients receiving Haloperidol, particularly those on high doses or with pre-existing cardiac conditions, is crucial to prevent these complications. It’s important for healthcare providers to be vigilant about this risk and to consider alternatives or additional monitoring strategies when prescribing this antipsychotic medication.