<prompt> Digoxin is contraindicated inREPEATSupraventricular tachycardiaAtrial fibrillationCongestive hea failureHyperophic obstructive cardiomyopathy  <response>: non selective beta blockerspropanololare the Agents of choice for hyperophic obstructive cardiomyopathy in hyperophic obstructive cardiomyopathy, the left ventricular outflow tract is narrowed during systole due to hyperophic septum.. obstraction is worsened by Factors increasing myocardial contractility-digitalis,sympathetic stimulation factors decreasing left ventricular filling-valsalva maneuver,peripheral vasodilators Refer kDT 6e p143 