A drug used to relieve minor or chronic pain and fever by reducing swelling in your body. Naproxen is a pill, and a common brand of naproxen is Aleve. You can buy naproxen at drugstores, convenience stores, and online. You can also get a prescription for naproxen from a nurse or doctor. Before you take naproxen, read the directions, and speak with your nurse or doctor if you’re currently on other medicines, have a health condition, or are not sure if naproxen is safe for you.