high blood pressure
"I'm a 29 yr old male, had a stress related heart attack, and yes it was confirmed. I tried atenolol, and a couple of others with no success, finally about the end of 2007 my doctor gave me a sample of bystolic and it was obvious that it was different and it worked. No more Atrial Fibrillation or irregular heart beat. I can't say much about my blood pressure but "I can honestly say that I live by it". Talk to your doctor if you don't like the beta blocker you are on and see if he has any samples."