Cimzia is a prescription medicine called a Tumor Necrosis Factor blocker. It is used to treat adult patients who suffer primarily from Rheumatoid Arthritis or Crohn’s Disease. Cimzia helps lessen the signs and symptoms of the disease it is treating. For patients who have severe Crohn’s Disease, Cimzia is an option after other treatments did not produce expected results. It is injected in either the stomach or upper thighs. Cimzia is also used to treat adults with active psoriatic arthritis and Ankylosing Spondylitis.