Contraindications : Intermittent complete heart block or 2nd degree AV block, esp w/history of Stokes-Adams attacks. Arrhythmias caused by cardiac glycoside intoxication. Supraventricular arrhythmias associated w/ an accessory AV pathway, as Wolff- Parkinson White syndrome, unless the electrophysiological characteristics of the acces sory pathway & any possible deleterious effect of digoxin on these characteristics have been eval even w/o history of previous supraventricular arrtrythmias. Ventricular tachycardia, Ventricular fibrillation, Hypertrophic obstructive cardiomyopathy unless w/ concomitant atrial fibrillation & heart failure