# Procainamide ## Basics Brand Names: Pronestyl Class: [[Antiarrhythmic]] Control: Form: injection (IV) (oral dosage forms of this medicine are no longer available in the United States.) ## Used for - ventricular arrhythmias - [[Ventricular Tachycardia]] - supraventricular arrhythmias - atrial flutter/fibrillation - Wolf-Parkinson-White syndrome ## How it Works ## Side Effects ## Interactions ## History was initially approved by the US FDA in 1950 and fell out of favor due to its side effect profile and the development of newer antiarrhythmics. Procainamide usage has increased in recent years, and it is now seen as a viable option for several arrhythmias. ## Resources: [National Library of Medicine](https://www.ncbi.nlm.nih.gov/books/NBK557788/#:~:text=Indications-,Procainamide%20is%20a%20medication%20used%20to%20manage%20and%20treat%20ventricular,a%20Class%201A%20antiarrhythmic%20agent.) [Mayo Clinic](https://www.mayoclinic.org/drugs-supplements/procainamide-intravenous-route/description/drg-20065651)