The alternative drug would be good old aspirin, which everyone seems to have forgotten about because regular use at levels high enough for it to work for fever and inflammation can tear apart the stomach lining and cause ulcers, but so
can ibuprofen and naproxen. All of them
can so throw off your digestive tract that even when
you stop taking them you might have problems chronically, as happened to me recently after bouts on ibuprofen for a hip problem and then a tooth problem.