Voltaren Retard 100mg is a prescription medication containing diclofenac sodium in a sustained-release formulation. Each pack contains 10 tablets. It belongs to the class of non-steroidal anti-inflammatory drugs (NSAIDs) used to treat pain and inflammation. The 'retard' in the name refers to the sustained-release formulation that provides extended drug release over time. Each tablet contains 100mg of diclofenac sodium as the active ingredient. This medication requires a prescription and should only be taken under medical supervision. The sustained-release formulation helps maintain consistent drug levels in the body throughout the day.