what's the difference between naproxen and naproxen sodium
Naproxen comes in two forms - either as the base naproxen or as the salt form naproxen sodium. You can get it with a prescription, or without. Both the base and salt forms work the same way to relieve pain. There is one difference -- naproxen base on a milligram-per-milligram basis is slightly stronger than naproxen sodium. Hereâs how it works out -- 220, 275, or 550 mg of naproxen sodium equals 200, 250, and 500 mg of naproxen, respectively.