<unk>  is an antiarrhythmic that is FDA approved for the {{{indicationType}}} of ventricular arrhythmias, such as sustained ventricular tachycardia. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include hypotension and dysrhythmia.
Procainamide
Tocainide
Flecainide
Lorcainide
Propafenone
Maprotiline
Verapamil
Dimetilan