Voltaren Topical Arthritis Pain Relief Gel helps you feel the joy of movement with a specialized formula, designed to penetrate deep through the skin to deliver powerful arthritis pain relief. Containing diclofenac sodium, this nonsteroidal anti-inflammatory drug targets pain directly at the site. Voltaren gel works through a triple effect: relieves arthritis pain, improves mobility and reduces stiffness to provide prescription-strength arthritis joint pain relief over the counter. Unlike other topical pain relief products that simply heat or cool the surface of the skin, Voltaren treats pain instead of just masking it. This arthritis pain relieving cream is formulated with Voltaren Emulgel, which combines the properties of a cream and a gel, and delivers arthritis pain relief deep through the skin at the site of pain.