Taking ibuprofen (or other NSAIDs) long-term can wear away the stomach lining, causing ulcers. Acetaminophen is generally better tolerated to manage mild long-term pain than NSAIDs, as long as you don't overdose / take with alcohol.
That's not helpful for the various categories of people who are more prone to gastrointestinal bleeding.
Taking ibuprofen (or other NSAIDs) long-term can wear away the stomach lining, causing ulcers. Acetaminophen is generally better tolerated to manage mild long-term pain than NSAIDs, as long as you don't overdose / take with alcohol.