<prompt> Which of the following medications would be prescribed most freequently to patients suffering from chronic atrial fibrillation?LidocaineBretyliumWarfarinAdenosine  <response>: Ref: KDT 6e p604 Patients of chronic atrial fibrillation are at high risk of developing thromboembolism. Oral anticoagulants are most frequently advised drugs in these patients to decrease the risk of this adverse effect. 