A friend of mine was diagnosed having AF two or three years ago. He has been taking Sotalol and Cumadin. He did electrial shot once, but the good results only lasted a couple of weeks. After taking the medicine for about half a year, his heart beat was back to normal, only went to irregular occasionally under emotional stress or hard physical work. About one year ago, he stoped taking Cumadine and is now using Sotalol only twice a day with half a pill each time. Now he only feels heart beat abnormal once in a while and can feel and hear the heart beat when sleeping sideways with left body on bed.