<unk>  is an antiarrhythmic that is FDA approved for the {{{indicationType}}} of paroxysmal atrial fibrillation/flutter (PAF) associated with disabling symptoms in patients without structural heart disease, recurrent paroxysmal supraventricular tachycardia (PSVT) associated with disabling symptoms in patients without structural heart disease, and life-threatening ventricular arrhythmias, such as sustained ventricular tachycardia. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include chest pain, edema, palpitations, constipation, nausea, taste alteration, vomiting, dizziness, anxiety, dyspnea, and fatigue.
Propafenone
Verapamil
Amiodarone 
Flecainide
Tocainide
Dimetilan
Boldenone
Lofexidine