Anaprox is a brand name for naproxen, a nonsteroidal anti-inflammatory drug (NSAID) used to reduce pain, inflammation, and fever. However, there are many other synonyms for anaprox that are commonly used in different countries and regions. Examples include Aleve, Naprosyn, Naprelan, Xefo, and Apranax. Although these drugs have different brand names, they all contain naproxen as the active ingredient and work in a similar way to reduce pain and inflammation. It is important to note that all NSAIDs, including anaprox, can have side effects and should be used with caution, especially in people with pre-existing medical conditions or who are taking other medications.