Voltaren SR 75mg is a sustained-release prescription medication containing diclofenac sodium. Each pack contains 30 film-coated tablets that provide antirheumatic, anti-inflammatory, and analgesic effects. The SR (sustained-release) formulation allows for extended drug delivery. The active ingredient diclofenac sodium belongs to the class of non-steroidal anti-inflammatory drugs (NSAIDs). The film-coated tablets should be taken whole with water and not crushed or chewed to maintain the sustained-release properties. 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 over time.