INTACEPT 50 mg Injection contains etanercept, a medication used to treat various autoimmune and inflammatory conditions. Etanercept works by inhibiting tumor necrosis factor (TNF), a substance in the body that causes inflammation. By blocking TNF, etanercept helps reduce inflammation, pain, and damage caused by certain conditions. In ​Rheumatoid Arthritis it prevents further joint damage by halting inflammatory pathways. Safe and effective in children with moderate-to-severe JIA.