Voltaren Emulgel 12 Hours is a topical pain relief gel containing diclofenac diethylamine that provides up to 12 hours of relief from pain and inflammation. It effectively treats muscle and joint injuries, soft tissue rheumatism, and arthritic pain through its deep-penetrating formula. The active ingredient diclofenac belongs to a group of medicines called non-steroidal anti-inflammatory drugs (NSAIDs). The gel is specially formulated to penetrate deeply into the skin to target inflamed tissues. It can be used for conditions like sprains, strains, sports injuries, tennis elbow, and mild arthritis of the knee or fingers. The non-greasy formula allows for easy application and quick absorption into affected areas.