Fensupp 12.5 Suppository is an anti-inflammatory and analgesic medicine that contains Diclofenac sodium. It is a fast-acting pain reliever that offers prompt relief from fever, pain and inflammation. It is also beneficial in various conditions, including rheumatoid arthritis, osteoarthritis, ankylosing spondylitis, acute gout, musculoskeletal disorders, accidents, sprains, dislocations, fractures, low back pain, pain and inflammation following dental, orthopaedic and other minor surgeries.