Therapeutic Classification

antiarrhythmic Registry

Clinical reference for antiarrhythmic medications. Access safety monographs, dosing adjustments, and drug-drug interactions for all registered brand names and generics in this class.

Registered Medications (antiarrhythmic)

Medication	Therapeutic Class	Maternal Safety
ADENOCARD Comprehensive clinical and safety monograph for ADENOCARD (ADENOCARD).	Antiarrhythmic	caution
ADENOSCAN Comprehensive clinical and safety monograph for ADENOSCAN (ADENOSCAN).	Antiarrhythmic	caution
ADENOSINE Comprehensive clinical and safety monograph for ADENOSINE (ADENOSINE).	Antiarrhythmic	caution
BRETYLIUM TOSYLATE Comprehensive clinical and safety monograph for BRETYLIUM TOSYLATE (BRETYLIUM TOSYLATE).	Antiarrhythmic (Class III)	caution
BRETYLIUM TOSYLATE IN DEXTROSE 5% Comprehensive clinical and safety monograph for BRETYLIUM TOSYLATE IN DEXTROSE 5% (BRETYLIUM TOSYLATE IN DEXTROSE 5%).	Antiarrhythmic (Class III)	caution
BRETYLIUM TOSYLATE IN DEXTROSE 5% IN PLASTIC CONTAINER Comprehensive clinical and safety monograph for BRETYLIUM TOSYLATE IN DEXTROSE 5% IN PLASTIC CONTAINER (BRETYLIUM TOSYLATE IN DEXTROSE 5% IN PLASTIC CONTAINER).	Antiarrhythmic (Class III)	caution
BRETYLOL Comprehensive clinical and safety monograph for BRETYLOL (BRETYLOL).	Antiarrhythmic (Class III)	caution
CARDIOQUIN Comprehensive clinical and safety monograph for CARDIOQUIN (CARDIOQUIN).	Antiarrhythmic Agent	caution
CARDRASE Comprehensive clinical and safety monograph for CARDRASE (CARDRASE).	Antiarrhythmic Agent	caution
CARNEXIV Comprehensive clinical and safety monograph for CARNEXIV (CARNEXIV).	Antiarrhythmic Agent	caution
CIN-QUIN Comprehensive clinical and safety monograph for CIN-QUIN (CIN-QUIN).	Antiarrhythmic (Class Ia)	caution
CORDARONE Comprehensive clinical and safety monograph for CORDARONE (CORDARONE).	Antiarrhythmic (Class III)	caution
CORVERT Comprehensive clinical and safety monograph for CORVERT (CORVERT).	Antiarrhythmic	caution
DEXTROMETHORPHAN HYDROBROMIDE AND QUINIDINE SULFATE Inhibits CYP2D6 and CYP3A4 increasing levels of many drugs Can cause cinchonism and thrombocytopenia.	Antiarrhythmic (Class Ia)	safe
DISOPYRAMIDE PHOSPHATE Other drugs that prolong the QT interval increase risk of torsades de pointes Can cause heart failure and severe anticholinergic side effects.	Antiarrhythmic (Class Ia)	avoid
DOFETILDE Comprehensive clinical and safety monograph for DOFETILDE (DOFETILDE).	Class III Antiarrhythmic	caution
DOFETILIDE Many drugs are contraindicated including verapamil and cimetidine as they inhibit secretion and increase levels Can cause life-threatening ventricular arrhythmias particularly torsades de pointes.	Antiarrhythmic (Class III)	caution
DRONEDARONE Comprehensive clinical and safety monograph for DRONEDARONE (DRONEDARONE).	Antiarrhythmic	caution
DRONEDARONE HYDROCHLORIDE Comprehensive clinical and safety monograph for DRONEDARONE HYDROCHLORIDE (DRONEDARONE HYDROCHLORIDE).	Antiarrhythmic	caution
DURAQUIN Comprehensive clinical and safety monograph for DURAQUIN (DURAQUIN).	Antiarrhythmic	caution
ETHMOZINE Comprehensive clinical and safety monograph for ETHMOZINE (ETHMOZINE).	Antiarrhythmic	caution
FLECAINIDE ACETATE Other drugs that prolong the QT interval increase risk of proarrhythmia Can cause new or worsened arrhythmias.	Antiarrhythmic (Class Ic)	safe
IBUTILIDE FUMARATE Other drugs that prolong the QT interval increase risk of torsades de pointes Can cause life-threatening ventricular arrhythmias particularly torsades de pointes.	Antiarrhythmic (Class III)	safe
LIDOCAINE Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE AND PRILOCAINE Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE HYDROCHLORIDE Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE HYDROCHLORIDE 0.1% AND DEXTROSE 5% IN PLASTIC CONTAINER Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE HYDROCHLORIDE 0.2% AND DEXTROSE 5% IN PLASTIC CONTAINER Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE HYDROCHLORIDE 0.2% IN DEXTROSE 5% Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE HYDROCHLORIDE 0.2% IN DEXTROSE 5% IN PLASTIC CONTAINER Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE HYDROCHLORIDE 0.4% AND DEXTROSE 5% IN PLASTIC CONTAINER Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE HYDROCHLORIDE 0.4% IN DEXTROSE 5% Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE HYDROCHLORIDE 0.4% IN DEXTROSE 5% IN PLASTIC CONTAINER Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE HYDROCHLORIDE 0.8% AND DEXTROSE 5% IN PLASTIC CONTAINER Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE HYDROCHLORIDE 0.8% IN DEXTROSE 5% IN PLASTIC CONTAINER Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE HYDROCHLORIDE 5% AND DEXTROSE 7.5% Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE HYDROCHLORIDE AND EPINEPHRINE Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE HYDROCHLORIDE IN PLASTIC CONTAINER Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE HYDROCHLORIDE PRESERVATIVE FREE Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE HYDROCHLORIDE PRESERVATIVE FREE IN PLASTIC CONTAINER Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE HYDROCHLORIDE VISCOUS Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE HYDROCHLORIDE W/ EPINEPHRINE Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
LIDOCAINE VISCOUS Beta-blockers may increase the risk of lidocaine toxicity Can cause CNS toxicity (seizures) and cardiovascular collapse.	Local Anesthetic / Antiarrhythmic (Class Ib)	safe
MEXILETINE HYDROCHLORIDE Comprehensive clinical and safety monograph for MEXILETINE HYDROCHLORIDE (MEXILETINE HYDROCHLORIDE).	Antiarrhythmic (Class IB)	caution
MEXITIL Comprehensive clinical and safety monograph for MEXITIL (MEXITIL).	Antiarrhythmic (Class IB)	caution
MULTAQ Comprehensive clinical and safety monograph for MULTAQ (MULTAQ).	Antiarrhythmic	caution
NEXTERONE Comprehensive clinical and safety monograph for NEXTERONE (NEXTERONE).	Antiarrhythmic	caution
NORPACE Comprehensive clinical and safety monograph for NORPACE (NORPACE).	Antiarrhythmic (Class Ia)	caution
NORPACE CR Comprehensive clinical and safety monograph for NORPACE CR (NORPACE CR).	Antiarrhythmic (Class Ia)	caution
PACERONE Comprehensive clinical and safety monograph for PACERONE (PACERONE).	Antiarrhythmic Agent	caution
PROCAINAMIDE HCL Other drugs that prolong the QT interval increase risk of torsades de pointes Can cause lupus-like syndrome and blood dyscrasias.	Antiarrhythmic (Class Ia)	safe
PROCAINAMIDE HYDROCHLORIDE Other drugs that prolong the QT interval increase risk of torsades de pointes Can cause lupus-like syndrome and blood dyscrasias.	Antiarrhythmic (Class Ia)	safe
PROCAN Comprehensive clinical and safety monograph for PROCAN (PROCAN).	Class Ia Antiarrhythmic	caution
PROCAN SR Comprehensive clinical and safety monograph for PROCAN SR (PROCAN SR).	Class Ia Antiarrhythmic	caution
PROCANBID Comprehensive clinical and safety monograph for PROCANBID (PROCANBID).	Class Ia Antiarrhythmic	caution
PROCAPAN Comprehensive clinical and safety monograph for PROCAPAN (PROCAPAN).	Class Ia Antiarrhythmic	caution
PRONESTYL Comprehensive clinical and safety monograph for PRONESTYL (PRONESTYL).	Antiarrhythmic	caution
PRONESTYL-SR Comprehensive clinical and safety monograph for PRONESTYL-SR (PRONESTYL-SR).	Antiarrhythmic	caution
QUALAQUIN Comprehensive clinical and safety monograph for QUALAQUIN (QUALAQUIN).	Antiarrhythmic (Class Ia)	caution
QUINACT Comprehensive clinical and safety monograph for QUINACT (QUINACT).	Antiarrhythmic (Class Ia)	caution
QUINAGLUTE Comprehensive clinical and safety monograph for QUINAGLUTE (QUINAGLUTE).	Antiarrhythmic (Class Ia)	caution
QUINALAN Comprehensive clinical and safety monograph for QUINALAN (QUINALAN).	Antiarrhythmic (Class Ia)	caution
QUINATIME Comprehensive clinical and safety monograph for QUINATIME (QUINATIME).	Antiarrhythmic (Class Ia)	caution
QUINIDEX Comprehensive clinical and safety monograph for QUINIDEX (QUINIDEX).	Antiarrhythmic Agent	caution
QUINIDINE GLUCONATE Inhibits CYP2D6 and CYP3A4 increasing levels of many drugs Can cause cinchonism and thrombocytopenia.	Antiarrhythmic (Class Ia)	safe
QUINIDINE SULFATE Inhibits CYP2D6 and CYP3A4 increasing levels of many drugs Can cause cinchonism and thrombocytopenia.	Antiarrhythmic (Class Ia)	safe
QUINORA Comprehensive clinical and safety monograph for QUINORA (QUINORA).	Antiarrhythmic Agent	caution
RYTHMOL Comprehensive clinical and safety monograph for RYTHMOL (RYTHMOL).	Class Ic Antiarrhythmic	caution
RYTHMOL SR Comprehensive clinical and safety monograph for RYTHMOL SR (RYTHMOL SR).	Class Ic Antiarrhythmic	caution
SORINE Comprehensive clinical and safety monograph for SORINE (SORINE).	Antiarrhythmic	caution
SOTALOL HYDROCHLORIDE Other drugs that lower heart rate or prolong QT interval can have additive effects Can cause life-threatening ventricular arrhythmias particularly torsades de pointes.	Antiarrhythmic (Class III)	safe
SOTYLIZE Comprehensive clinical and safety monograph for SOTYLIZE (SOTYLIZE).	Antiarrhythmic	caution
TAMBOCOR Comprehensive clinical and safety monograph for TAMBOCOR (TAMBOCOR).	Antiarrhythmic Agent	caution
TIKOSYN Comprehensive clinical and safety monograph for TIKOSYN (TIKOSYN).	Antiarrhythmic Agent	caution
TONOCARD Comprehensive clinical and safety monograph for TONOCARD (TONOCARD).	Antiarrhythmic (Class IB)	caution

This therapeutic registry is dynamically synthesized from professional clinical sources. Listing of a medication does not imply equivalence; refer to individual monographs for head-to-head pharmacological data.