Etoricoxib 60mg. + Thiocolchicoside 4mg. is a combination medication used for the treatment of musculoskeletal pain, especially in conditions like acute back pain, muscle spasms, or other inflammatory pain disorders. Etoricoxib 60mg is a selective COX-2 inhibitor, which reduces pain and inflammation by blocking the production of prostaglandins, chemicals that cause pain and swelling in the body. Thiocolchicoside 4mg is a muscle relaxant that works by acting on the central nervous system to alleviate muscle spasms. The combination of these two ingredients provides both analgesic and anti-inflammatory effects, as well as muscle relaxation, making it effective for conditions involving both pain and muscle stiffness or spasms.