Question : Thank you.  I am considering taking staxyn.  However, ~3 years ago I experienced 2 - 3 weeks of intermittent, lone atrial 
fibrillation, with episodes varying in length from 3 hours to 20 hours.  I stopped drinking alcohol, caffeine, and any other substance that I knew might have a mediating effect on heart rhythm.  I took a number of other steps as well , including ensuring proper electrolytes, fluids, and sleep, and lots of exercise.  I have been A-Fib free over three years.  I understand this type of recovery from what was clearly A-Fib is rare, and I hesitate to do anything that might cause a recurrence.  Staxyn can, among other things, cause a prolonged QT interval, which can, as I understand, cause some type of 
ventricular arrhythmia.  
Erectile dysfunction is unpleasant but not life threatening - yet it would be nice to be able to treat.  Would you, if in my place, consider taking staxyn?  Please share your thought process.  Thanks very much in advance.