Voltaren Emulgel 12 Hours is a topical pain relief gel containing diclofenac diethylamine. This non-greasy formula provides up to 12 hours of relief from pain, inflammation and swelling due to muscle and joint injuries, soft tissue rheumatism (tendonitis) and arthritis pain. The gel format allows for direct application to the affected area, where it quickly penetrates the skin to deliver targeted pain relief. As a non-steroidal anti-inflammatory drug (NSAID), it works by reducing inflammation and pain at the site of application. The 50g size makes it convenient for regular use. The product should be applied to intact skin and gently rubbed in. Wash hands after application unless treating hands. Do not use if allergic to diclofenac or other NSAIDs.