Voltaren Emulgel 1.16% contains the active substance diclofenac which belongs to a group of medicines called non-steroidal anti-inflammatory drugs (NSAIDs). It is specially formulated for rubbing into the skin only. Voltaren Emulgel 1.16% is used to relieve pain and swelling in a number of painful conditions affecting the joints and muscles. Voltaren Emulgel 1.16% relieves rheumatic and muscular pain, and reduces swelling and inflammation, e.g. injuries involving the tendons, ligaments, muscles and joints. For relief of sprains, strains, bruises, backache, tendonitis (e.g. tennis elbow) and for localized and mild arthritis. Voltaren Emulgel 1.16% may also be used to treat other conditions as determined by your doctor