Voltaren 2% 12 Hours Emulgel is a topical pain relief medication containing diclofenac diethylamine. This 100g gel formulation provides up to 12 hours of targeted relief from pain, inflammation and swelling associated with muscle and joint conditions. The active ingredient diclofenac diethylamine belongs to the non-steroidal anti-inflammatory drug (NSAID) class. This emulgel formulation is specifically designed to treat muscle and joint injuries, soft-tissue rheumatism (tendonitis), and non-serious arthritis of the knee or finger. The gel format allows for direct application to the affected area, with the medication penetrating the skin to reach the source of pain and inflammation.