I have been on two different beta blockers for migraines ( atenolol,inderal) and both seemed to work ok for awhile but then I would have a few side effects like always tired and low sex drive.Tried pamelor and was about the same.Now for the good news apprx. 2 months ago I started taking atacand which is for high blood pressure as well.The results have been great with only a couple of minor headaches and NO side effects. I hope this helps you some.