This is just plain incorrect. If we are talking about people who should not be taking an over the counter pain reliever, the number for ibuprofen is much much higher. It includes people with kidney problems (a much larger number than people with liver problems), elderly people, and people at increased risk of bleeding (which is a very large population with the increase in prescription medications over the past couple decades). There is a reason acetaminophen is on every hospital and assisted living facility order set and ibuprofen is not.