I take atenolol for high blood pressure and been for 5 yrs think that is what making me dizzy,help! Do you think that it is safe to try taking half of my 25 mg of atenolol and see if it helps my dizziness, ive told doctors many times, but dont seem to be getting anywhere, bc i been feeling like this for 4 1/2 yrs or little more and im so tired and fustrated, just cant feel like this anymore, i feel so bad i cant focus, scared its going to kill me!!