<p>Sotalol is not for everyone with irregular heartbeats (atrial fibrillation).&nbsp;Sotalol is not indicated for those patients who have serious kidney problems or are on kidney&nbsp;dialysis, lung disease causing shortness of breath (such as asthma, chronic bronchitis or&nbsp;emphysema), symptoms of heart failure (such as shortness of breath when in exercise or&nbsp;physically active and swelling of the ankles or legs), very slow heart beat and do not have an&nbsp;implanted artificial pacemaker.</p>