Answer
Dronedarone prolongs cardiac action potentials and refractory periods by blocking potassium currents, including IK(Ach), IKur, IKr and IKs, producing Class III antiarrhythmic effects.
Sources for this answer
- Multaq 400mg tabletsSANOFI · emc · SmPC §5.1 Pharmacodynamic properties · Version 18Document updated
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