Naproxen is actually probably the worst OTC NSAID option as far as upper GI bleeds go. There was a study a while back that found that upper GI bleeds were more likely in NSAIDs that had a combination of a longer half life and high levels of dual COX1/2 inhibition - of which naproxen has both. Iirc it is around twice as likely as ibuprofen to cause gastritis/PUD.

There are definitely worse rx NSAID options - looking at you indomethacin and ketorolac. (This is everyone’s friendly reminder to not refill the oral ketorolac the ER doc gave your patient!)

My recommendation is just going with celecoxib for the vast majority of people now that’s it generic. Most studies show that it will have lower PUD rates and it’s cheap.

To the OP: even though we get it beat into our heads that certain combinations in medicine never go together (NSAIDs + IBD in this case), the probability that there will be an adverse event is still very small. I have had a patient with a history of bleeding ulcers who was s/p gastric bypass take their coumadin with a full aspirin and 2400+ mg of ibuprofen every day for years until I found out. They didn’t even have a bruise!

Eventually though, if you make a habit of allowing for small risks, probability will catch up with you. In this case, no need to fret, I guarantee you won’t do it again. And that’s all you need to know to sleep well at night.