We didn’t find out for quite a while that the generic tramadol contained acetaminophen. Dad was on so many meds that I finally bought a pill book to keep up. The 11th edition was from 2004. It listed Generic Tramadol as having both Tramadol and Acetaminophen combined.
So I went back and double checked with my Doctor and Pharmacist and they confirmed it. So I had to take that into consideration as part of his Tylenol dose, which had to be more limited than usual due to his kidneys.
I know there were news reports that people were inadvertently getting too much and damaging kidneys and livers, because the disclosures weren't clear enough, and elderly people especially have to be careful with acetaminophen.
Bottom line is to be careful and ask a lot of questions when you get pain meds. Sorry to get into the weeds with all the detail.LOL
It amazes me that so many doctors and hospitals recommend/prescribe acetaminophen without divulging its dangers.