Hi everyone!
I'm a newbie here, but I've had IST for 7 years now. I've been taking atenolol for the last few years and it has worked really well for me. Unfortunately, I've been unable to find a pharmacy with atenolol to refill my prescription thanks to the current shortage. I was prescribed metoprolol XL instead, and I have felt awful since switching. Initially, I had frequent palpitations and high HR, dizziness, and headaches. After a few days on the original dose, my doctor increased my dose, and since then my heart-related symptoms have mostly improved, but I have had a near constant headache for days. Atenolol actually had the side benefit of improving my migraines, but metoprolol seems to be making them worse.
Has anyone experienced anything similar switching from atenolol to metoprolol, or between any other beta-blockers? Is this just an adjustment period? I don't know whether to contact my doctor again about increasing the dose or trying a different beta-blocker, or if I should give it more time.