Inflectra (Infliximab-dyyb) is used to treat rheumatoid and psoriatic arthritis, ankylosing spondylitis, Crohn's disease, plaque psoriasis and ulcerative colitis. Inflectra is a biosimilar for remicade (infliximab). Biosimilars are biologic drugs that are similar to the original medication with no meaningful differences in effectiveness or safety. Inflectra may be covered by your Medicare or insurance plan. With the Patient Assistance Program from PAN Foundation, contact the program to see how they can financially help you out.