Infliximab Injection finds usage in relieving symptoms of certain autoimmune disorders where immune system attacks healthy parts of body which causes conditions like pain, swelling and damage. From the medication class ‘tumor necrosis factor-alpha (TNF-alpha)’ inhibitors, it works by blocking action of TNF-alpha, a substance present in body that causes inflammation. This includes rheumatoid arthritis (condition where body attacks its own joints that cause pain, swelling and loss of function), Crohn's disease (where body attacks lining of digestive tract that causes pain, diarrhea, weight loss and fever) and ulcerative colitis (condition that results in swelling & sores in lining of large intestine) that occurs in adults and children of 6 years of age or older. Other than this, the injection is also used for treating cases of ankylosing spondylitis, psoriasis and psoriatic arthritis.