Voltaren SR 75mg is a prescription medication containing diclofenac sodium, manufactured by Novartis. It is an antirheumatic, anti-inflammatory, and analgesic drug used to treat pain, inflammation and stiffness caused by various conditions. The SR (sustained release) formulation provides extended pain relief. Each tablet contains 75mg of diclofenac sodium as the active ingredient. The medication comes in a pack of 30 sustained release tablets. As a prescription medication, it should only be taken under the supervision and guidance of a healthcare professional. The SR formulation is designed to release the medication gradually for longer-lasting effects.