Vasodilators (nitrates, calcium channel blockers, angiotensin-converting enzyme inhibitors), phenothiazines, antidepressants (tricyclic agents, monoamine oxidase inhibitors), central nervous system depressants (barbiturates), drugs associated with torsades de pointes (quinidine, procainamide, disopyramide, amiodarone, sotalol, flecainide), diuretics, digitalis, insulin, marijuana, alcohol, cocaine. This evidence concerns the gene INS and torsades de pointes.