Chlorzoxazone+Diclofenac+Paracetamol is used for pain due to muscle spasm. Chlorzoxazone + Diclofenac + Paracetamol is a combination of a muscle relaxant (Chlorzoxazone ) and two pain relieving medicines ( Diclofenac and Paracetamol). The muscle relaxant works on the centers in the brain and spinal cord to relieve muscle stiffness or spasm, thereby improving movement of muscles. The pain relieving medicines work by blocking the release of certain chemical messengers in the brain that cause pain and inflammation (redness and swelling). This medicine is most effective when taken along with proper rest and physical therapy. Take as directed by physician.