24th April 2024

Antiarrhythmic medications

The development of new medications to treat arrhythmias and a greater understanding of the underlying mechanisms of current medicines, means there is often an overlap between categories. Amiodarone for example, is a class III antiarrhythmic that blocks potassium channels but also sodium and calcium channels (see Table 1). 

Table 1: Vaugh-Williams classification of antiarrhythmic medicines.