Some examples are amiodarone, azithromycin, disopyramide, dronedarone, pimozide, quinidine, amongst others. Low levels of potassium or magnesium in the blood may also increase your risk of QT prolongation. This risk may increase if you are using certain drugs (such as diuretics/"water pills") or if you have conditions such as severe sweating, diarrhea, or vomiting.


