Naproxen is a nonsteroidal anti-inflammatory drug (NSAID). It works by reducing hormones that cause inflammation and pain in the body. Naproxen is used to treat pain or inflammation caused by conditions such as arthritis, ankylosing spondylitis, tendinitis, bursitis, gout, or menstrual cramps.

Carisoprodol is a muscle relaxer that works by blocking pain sensations between the nerves and the brain. Carisoprodol is used together with rest and physical therapy to treat injuries and other painful musculoskeletal conditions.