<prompt> A 50 year old man had an attack of myocardial infarction and developed ventricular ectopics and low ejection fraction. Which of the following antiarrhythmic drug to be given -FlecainideMexilitineBeta-blockerRadio-frequency ablation technique  <response>: Ans. is c i.e., Beta-blockers Beta-adrenoreceptor blocking agents are effective in abolishing ventricular ectopic activity in patients with acute MI .Because of concerns about worsening arrhythmia and sudden death with most antiarrhythmic agents, beta- blockers are the agent of choice. 