In addition to inherited LQTS, a wide variety of drugs can also trigger ventricular arrhythmia and sudden death through blockade of hERG channels, such as Class III antiarrhythmics, antibiotics, antihistamines, antipsychotics, or anticancer agents (Mitcheson, 2008; Fradley and Moslehi, 2015). The gene discussed is KCNH2; the disease is familial long QT syndrome.