Cardiac Action Potential Simulator

Vaughan Williams Class I–IV Antiarrhythmics

Cell Type

Parameters

Phase 0 (I_Na) 1.00×

APD (I_K) 1.00×

ERP fraction 0.85

Resting -85 mV

Antiarrhythmics

Class IA · Na block + K block

Class IB · Na block (weak, ischemia-selective)

Class IC · Na block (strong)

Class II · β-blockers

Class III · K block

Class IV · non-DHP CCB

Other · AV nodal / membrane

Display ⋮⋮

Ghost (baseline) Phase labels Ion currents ERP shading Threshold line

Current

Baseline