VoltarenConventional Name: diclofenac sodium Brand Name: Voltaren, Voltaren-XR, likewise Cambia, Cataflam, Zipsor, Zorvolex, Dyloject What is Voltaren? Voltaren (diclofenac) is a nonsteroidal calming drug (NSAID). Voltaren works by decreasing substances in the body that reason torment and aggravation. Voltaren oral tablets are utilized to get gentle moderate agony, or signs and indications of osteoarthritis or rheumatoid joint pain. Voltaren is likewise used to treat ankylosing spondylitis.