amiodarone, Cordarone - an antiarrhythmic drug (trade name Cordarone) that has potentially fatal side effects and is used to control serious heart rhythm problems only when safer agents have been ineffective

encainide, Enkaid - antiarrhythmic drug (trade name Enkaid) used to treat life-threatening arrhythmias but increases the risk of sudden death in heart attack patients

flecainide, Tambocor - oral antiarrhythmic medication (trade name Tambocor) used as a last resort in treating arrhythmias; increases the risk of sudden death in heart attack patients

medicament, medication, medicinal drug, medicine - (medicine) something that treats or prevents or alleviates the symptoms of disease

mexiletine, Mexitil - antiarrhythmic drug (trade name Mexitil) used to treat ventricular arrhythmias

Quinidex, quinidine, Quinora - cardiac drug (trade names Quinidex and Quinora) used to treat certain heart arrhythmias

tocainide, Tonocard - antiarrhythmic drug (trade name Tonocard) used to treat ventricular arrhythmias when less dangerous drugs have failed