N-Acetylprocainamide
（重定向自Acecainide）
![Schematic representation of normal ECG](/Images/godic/202412/17/EKG_Complex_en.svg3316.png")
![Reaction of N-acetylprocainamide](/Images/godic/202412/17/Schema_NAPA23316.png")
N-Acetylprocainamide (NAPA or acecainide) is the N-acetylated metabolite of procainamide. It is a Class III antiarrhythmic agent, whereas procainamide is a Class Ia antiarrhythmic drug. It is only partially as active as procainamide; when checking levels both must be included in the final calculation.