NIMESULIDE+CHLORZOXAZONE belongs to the group of medicines called muscle relaxants indicated for the relief of painful skeletal muscle spasms. Pain is a symptom triggered by the nervous system, causing uncomfortable sensations in the body. Muscle spasms are the involuntary contractions of muscles which can be painful. Musculoskeletal pain affects the bones, muscles, ligaments, tendons and nerves. CHLORZOXAZONE+PARACETAMOL belongs to the class of drugs known as analgesics and muscle relaxants. It is primarily indicated for the relief of severe skeletal muscle spasms associated with painful conditions such as low back pain, sprain, strain, myalgia (muscle pain), headache, traumatic muscle injuries, cervical root and disc syndrome, torticollis (neck muscle contractions), and fibrositis (pain and inflammation of muscles). Muscle spasms are involuntary contractions of muscle, which can be painful.