TNF-alfa (alpha) inhibitors (TNF-alpha) are a group of medicines that suppress the body's natural response to tumor necrosis factor (TNF), a protein produced by white blood cells that is involved in early inflammatory events.
TNF-alfa inhibitors treat a wide range of inflammatory conditions such as rheumatoid arthritis (RA), psoriatic arthritis, juvenile arthritis, Crohn's disease, ulcerative colitis, ankylosing spondylitis, and psoriasis.