7th February 2024

A 56-year-old male was recently diagnosed with a new onset of atrial fibrillation and was cardioverted.

A 56-year-old male was recently diagnosed with a new onset of atrial fibrillation and was cardioverted. His cardiologist has given him a medication that affects phase 0 of the cardiac action potential generation as a “pill-in-the-pocket” strategy. 

Which medication is likely to have been prescribed?