Voltaren D 50mg dispersible tablets contains an active ingredient diclofenac free acid 50mg which relieves pain and reduces inflammation that may occur in different types of arthritis including rheumatoid arthritis and osteoarthritis and other painful conditions where swelling is a problem such as back pain, rheumatism, muscle strains, sprains and tendonitis. It belongs to the class of Non-Steroidal Anti-inflammatory drugs (NSAIDs). These medicines can relieve the symptoms of pain and inflammation, but they will not cure your condition. NSAIDs works by inhibiting cyclooxygenase-1 and -2, the enzymes that are responsible for production of a prostaglandin; (PG) G2, which is the precursor to other prostaglandins. These molecules have broad actions in the mechanism of pain and inflammation and the inhibition of production of these prostaglandins by diclofenac results in cure from inflammation and pain. Voltaren D 50mg is also used reduce the pain due to menstrual cramps.