ETOBRIX TH 4 SOFT GELATIN CAPSULE is a combination of Etoricoxib and Thiocolchicoside which belongs to the group of medicines called Non-steroidal anti-inflammatory drugs (NSAID) and Muscle relaxants. It is used to reduce pain and swelling in the joints and muscles in osteoarthritis, rheumatoid arthritis, ankylosing spondylitis, gout and muscle spasm. This medicine is also used for the short-term management after dental surgery for moderate pain.