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 reducing hormones that cause inflammation and pain in the body. Fenbufen is also utilized in the management of acute pain, including dental pain and postoperative discomfort. Due to its long-acting metabolites, it allows for less frequent dosing, improving patient compliance. It is not typically used for immediate pain relief but rather for sustained control of chronic inflammatory conditions.