Drug comparisons
Procainamide vs Tocainide
Procainamide (class Ia) has black box warnings for agranulocytosis and lupus, Tocainide (class Ib) does not. Both are oral antiarrhythmics for ventricular arrhythmias but selection depends on individual risks.
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Clinical context
This comparison is triggered when assessing oral antiarrhythmic options for patients with ventricular arrhythmias.
Bottom line
Procainamide and Tocainide are both used for ventricular arrhythmias but differ in their warning profiles, with Procainamide carrying black box warnings.
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