एमियोडेरोन और प्रोपाफेनोन का इंटरैक्शन

Reserve the combination of amiodarone with other antiarrhythmic therapies that prolong the QTc to patients with life-threatening ventricular arrhythmias who are incompletely responsive to a single agent.

Avoid the use of propafenone with Class IA and III antiarrhythmic agents (including quinidine and amiodarone).

Amiodarone Concomitant administration of propafenone and amiodarone can affect conduction and repolarization and is not recommended.

• The applicability of the CAST results to other populations (e.g., those without recent myocardial infarction) or other antiarrhythmic drugs is uncertain, but at present, it is prudent to consider any IC antiarrhythmic to have a significant proarrhythmic risk in patients with structural heart disease.

• Avoid use with other antiarrhythmic agents or drugs that prolong the QT interval.

• Avoid simultaneous use of propafenone with both a cytochrome P450 2D6 (CYP2D6) inhibitor and a 3A4 inhibitor (CYP3A4).