I was also concerned about inaccuracy, so I was testing a lot more often during that time point, and haven’t noticed anything irregular on that front either (and I’ve been high and low during the last 24 hours and checked to confirm each). So for me, it so far doesn’t seem to be effecting accuracy either, but again, this is n=1 and I definitely would not assume that would be true for anyone else or even for myself in the future, and would still check more carefully if/when I use tylenol again.
I’m already maxed out on naproxen (500mg/2x a day; or if I do ibuprofen, 800mg every 4 hours) and I already take several prescription non-opiates to manage pain (and am intolerant of opiates, so those aren’t an option for me), so if I’m at the point where I need to add to that, I honestly don’t care if it makes my CGM less reliable because I need to not be in overwhelming pain. I was just pleasantly surprised that it didn’t have a noticeable impact on my CGM.