They used to cause my already low and constantly fluctuating blood pressure to go way too low. Fast forward 20 years after I had ablasion for a rare arryhthmia that caused the scary low BP and super high HR with palpitations, I can take them. They still lower my BP, but not dangerously. They actually help sometimes, but do make me feel really weak and extremely sleepy - more sleepy than any other med I've ever taken.

I can't take them because of hemiplegic migraine. I take a beta blocker but nothing stops them daily

I can’t take Triptains due to having had a stroke in my left eye when I was in my 40’s.