anxiety
"was prescribed this for tremor (due to seizure Rx). had been on primadone, which worked well. atenolol caused dizziness, extreme vertigo, anxiety, suicidal thoughts, chest pains, tightness when trying to breathe. I fainted. MD told me to go off it. After fainting, called pharmacist. He said "get to the ER" and "why are you on a beta blocker?" I didn't know atenolol was a beta blocker. Not supposed to take those due to having asthma. In ER, my BP was 188/88. Usually is around 123/63. Took 4 hours, IV etc. to get BP down to 158/78. They released me but said to tell MD never to put me on betas again."