Voltaren Emulgel Gel is used for Back pain, Sprains and strains, Rheumatoid arthritis, Osteoarthritis, Acute gout, Ankylosing spondylitis, Soft tissue sports injuries, Frozen shoulder, Dislocations and fractures, Tendonitis, Bone and joint surgery, Dental and minor surgery and other conditions. Voltaren Emulgel Gel may also be used for purposes not listed in this medication guide. Voltaren Emulgel Gel contains Diclofenac Sodium as an active ingredient. Voltaren Emulgel Gel works by reducing the substances in the body that cause inflammation and pain.