FDA Warning: Rare Cancer Linked to TNF Blockers Used for Arthritis About - News & Issues The rare cancer has mostly affected adolescents and young adults being treated for Crohn's disease or ulcerative colitis with TNF blockers (also known as tumor necrosis factor inhibitors), azathioprine, or mercaptopurine. ... Update for Tumor Necrosis Factor (TNF) Blockers TNF Blockers and Cancer: FDA Requires Increased Surveillance |
