Newcox TH 60 mg/4 mg Tablet is a combination of two medicines used in the treatment of pain due to muscle spasm. It improves the movement of muscles and provides relief from pain and discomfort associated with muscle spasms. It is a combination of two medicines: Etoricoxib and Thiocolchicoside which relieves pain and relaxes the muscles. Etoricoxib is a non-steroidal anti-inflammatory drug (NSAID) which works by blocking the release of certain chemical messengers that cause pain and inflammation (redness and swelling). Thiocolchicoside is a muscle relaxant. It works on the centers in the brain and spinal cord to relieve muscle stiffness or spasm and to improve pain and movement of muscles.