I munch one or two occasionally - not a big deal. I haven't munched them for a bit till my off then it was back o the full strength prescription stuff, that helped me get out of the hospital/home/toilet.
I usually have the OTC stuff in the cupboard due to long term issues with a broken spine... it helps.
If you've had a tough day on the bike, there is no harm in popping a couple of ibuprofen after the ride to ease off pain, so you are ready to roll. It's all in moderation. I forgot to pop ibuprofen and co-codamol this morning as I left to drive to work - I struggled to walk from the car park to the office on arrival. It's rough sometimes. I popped ibuprofen when in the office to keep going, but it was 10am ish when I was more mobile, rather than 8:30 after popping the better stuff at 7am on leaving home.
As I always say, (awaiting the mod edit)
Sh!T happens if you are active, so patch it and carry on.