Ziihera® (Zanidatamab-hrii): Prescription biologic targeting IL-23 for moderate to severe plaque psoriasis, active psoriatic arthritis, Crohn's disease, and ulcerative colitis. Available as 150mg/mL prefilled syringe/pen for subcutaneous injection, and 600mg/10mL vials for IV infusion. Dosage varies based on condition. Refrigerate; protect from light.