Enbrel

Enbrel is a type of protein called a tumor necrosis factor (TNF) blocker that blocks the action of a substance your body's immune system makes called TNF. People with an immune disease, such as rheumatoid arthritis, ankylosing spondylitis, psoriatic arthritis, and psoriasis, have too much TNF in their bodies. Enbrel can reduce the amount of TNF in the body to normal levels, helping to treat your disease. But, in doing so, Enbrel can also lower the ability of your immune system to fight infections.