What naproxen is for. Naproxen is a type of painkiller called a non-steroidal anti-inflammatory drug (NSAID). Naproxen can help with lots of types of pain … Naproxen is used to treat pain or inflammation caused by conditions such as arthritis, ankylosing spondylitis, tendinitis, bursitis, gout, or menstrual cramps. Description. Naproxen is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve symptoms of arthritis (eg, osteoarthritis, … Naproxen can lessen pain, swelling, redness and heat (inflammation) and is used to treat adults for: Problems with your muscles, joints and tendons, like … Naproxen is a non-steroidal anti-inflammatory drug (NSAID) widely used to relieve pain and inflammation caused by arthritis and gout. Typically, it is used for pain or for inflammation. It may also be used for the relief of osteoarthritis, as well as for other uses. Its effects can be felt … What is this medication? NAPROXEN (na PROX en) treats mild to moderate pain, inflammation, and arthritis. It belongs to a group of medications called NSAIDS. Naproxen is a non-steroidal anti-inflammatory drug (NSAID). It works by blocking the production of certain chemicals in the body that cause pain … Naproxen is a common drug people use to treat pain and swelling. This article provides an overview of naproxen, including how it works, its uses, and more.