Umm NSAIDs like Naproxen have their own list of issues which may be worse than Tylenol. Another issue is that Tylenol is often used because it does not interact with other NSAIDs so if you are not sure if someone has taken medication with a NSAID in it, you can safely give them Tylenol, generally speaking, where as if you give them more NSAIDs you could potentially risk an overdose. So its not as simple as Napoxen is superior to Tylenol. IANAD,