Proxen 500mg (Naproxen) is a medication commonly used for the relief of pain and inflammation. It belongs to a class of drugs known as Non-Steroidal Anti-Inflammatory Drugs (NSAIDs). Proxen (Naproxen) is used to treat various conditions involving pain and inflammation, including: Arthritis (Osteoarthritis, Rheumatoid Arthritis, Ankylosing Spondylitis). Musculoskeletal Disorders (e.g., tendonitis, bursitis). Acute Pain (e.g., muscle pain, toothaches, headaches). Menstrual Pain (Dysmenorrhea). Fever (as part of its anti-inflammatory effect)Naproxen works by inhibiting enzymes called COX-1 and COX-2 that are involved in the production of prostaglandins. Prostaglandins are chemicals that promote inflammation, pain, and fever. By blocking their production, Proxen helps reduce these symptoms.