Olfen-75 IM (Intramuscular) is a form of Diclofenac, which is a nonsteroidal anti-inflammatory drug (NSAID) used for its analgesic (pain-relieving), anti-inflammatory, and antipyretic (fever-reducing) properties. It is typically prescribed for conditions where pain and inflammation need to be managed quickly and effectively. Diclofenac works by inhibiting the action of cyclooxygenase (COX) enzymes, which are involved in the production of prostaglandins—chemicals in the body that promote inflammation, pain, and fever. By blocking these enzymes, Diclofenac reduces inflammation and alleviates pain.