Used primarily as a nonsteroidal anti-inflammatory drug (NSAID), it is prescribed to relieve pain, inflammation, and stiffness caused by conditions such as osteoarthritis and rheumatoid arthritis. It works by inhibiting the production of prostaglandins, substances in the body that cause pain and swelling. Fenbufen is valued for its long duration of action, allowing for less frequent dosing compared to some other NSAIDs. It is also used to manage mild to moderate pain, including musculoskeletal pain and postoperative discomfort. Due to its anti-inflammatory properties, it helps improve mobility and quality of life in chronic joint diseases.