I have had really bad hayfever, and having exhausted my previous pills, picked Allevia up in my local pharmacy.
When I then had 3 days of palpitations, erratic BP, and generally feeling crap it didn’t occur to me to suspect the hayfever pills as previous types over many years had never caused the slightest problem.
Having checked and double checked my prescribed meds I was thinking to report to my GP for help.
Then my wife found a warning on the back of the Allevia packet saying if you have ever had heart disease do not use, in smaller print. It also says the same on the printed sheet inside to be fair.
Lesson learnt, it has taken 3 days to settle down to (what I call) normal. I will now treat every over the counter medication as potentially dangerous ⚠️☠️
Steve