Taltz is a prescription medication used to treat certain autoimmune conditions, primarily psoriasis and ankylosing spondylitis. It works by targeting specific proteins in the immune system to reduce inflammation and prevent the overactive immune response that leads to these conditions. Administered as an injection, Taltz is typically given once a month after an initial loading dose. Common side effects may include injection site reactions, upper respiratory infections, and headaches. Patients should consult their healthcare provider for personalized advice and to discuss any potential risks or benefits associated with the treatment.