Because NSAIDs can lead to erosion and bleeding in your gut. I've been told to avoid NSAIDs "forever", or at least until a gastroscopy has shown my stomach is

Because NSAIDs can lead to erosion and bleeding in your gut. I've been told to avoid NSAIDs "forever", or at least until a gastroscopy has shown my stomach is fully recovered after using ibuprofen strictly within the dose limits. It's a known risk, and lowering the dose just reduces the odds - it doesn't remove the risk. Acetaminophen/paracetamol overdoses do happen, but they're rare and usually involve significant overdoses rather than minor accidental excess use. Their ability to bring down fevers etc. also tend to differ depending on source. Acetaminophen/paracetamol is usually the first recourse in hospitals etc. because as long as you dose it right, the odds it both works and doesn't incur harm are better.