what is indomethacin.
Indomethacin is a nonsteroidal anti-inflammatory drug (NSAID). Indomethacin works by reducing hormones that cause inflammation and pain in the body. Indomethacin is used to treat moderate to severe osteoarthritis, rheumatoid arthritis, gouty arthritis, or ankylosing spondylitis. Indomethacin is also used to treat shoulder pain caused by bursitis or tendinitis. Extended-release indomethacin (Indocin SR) should not be used to treat gouty arthritis.