If you have a question when you receive your child's prescription, you can call ZTALMY One at 1-844-ZTALMY-1 (1-844-982-5691). Our Patient Care Coordinators are available Monday through Friday, 8 am to 8 pm ET, and our pharmacists are available 24/7. Check out the Getting Started Brochure to learn more about ZTALMY One services, dosing information, and how to give ZTALMY.