Diacerein is primarily used in the treatment of osteoarthritis, particularly in the knee and hip joints. It works by inhibiting the production of inflammatory cytokines and enzymes that degrade cartilage, thereby reducing pain and improving joint function. It is often prescribed as a long-term therapy to slow the progression of the disease and protect cartilage from further damage. Additionally, diacerein has been studied for its potential benefits in managing other inflammatory conditions, such as rheumatoid arthritis and skin disorders, due to its anti-inflammatory and antioxidant properties. It is typically administered orally in the form of capsules or tablets.