Taltz (ixekizumab) is used to treat adults with psoriatic arthritis, ankylosing spondylitis, non-radiographic axial spondyloarthritis, and for adults and children with moderate to severe plaque psoriasis. There are no generic alternatives to Taltz. It may be covered by Medicare or insurance plans. With the Patient Assistance Program from PAN Foundation, contact the program to see how they can financially help you out.