VOLTAREN RTD * 10 PER PACK is one of a group of medicines called Non-steroidal anti-inflammatory drugs (NSAIDs). NSAIDs reduce pain and inflammation. Voltaren Retard Tablets are specially formulated to release the diclofenac sodium slowly. Relieves pain, reduces swelling, and eases inflammation in conditions affecting the joints, muscles, and tendons. Relieves painful conditions resulting from trauma, including fractures, sprains, strains, dislocations, etc