high blood pressure
"I would stay away from atenolol.  I was on it for 6 years and the entire time I had chronic gout flare ups, really bad cholesterol and even worse triglycerides. Doctors couldn't figure it out. Then one day I woke up and though the only med I've been on consistently for those years was atenolol. So I lied to my doctor and told him it wasn't lowering my blood pressure anymore and asked for amlodipine as my mother has been on it for a long time with great results. 
As soon as I stopped taking the atenolol, within a week all my joints started feeling better. It's now been about 2 years since my last atenolol pill and the same amount of time since my last gout flare up. Also just tested my cholesterol and it's perfect!"