Contact Us

Thank you for your interest in XOLAIR. In order to help get the right answers to your questions, we provide a few ways for you to contact us:

By Email
Visit to ask questions online.

By Phone
Please call us toll-free at 1-866-4XOLAIR (1-866-496-5247) Monday through Friday, 9:00 AM to 8:00 PM ET. However, if you have any questions about your health or treatment, you are encouraged to contact your healthcare provider.

Our hours of operation may vary during U.S. holidays. In case of a medical emergency, please contact your physician immediately.

By Mail
You can also write to us at:

Customer Interaction Center
Novartis Pharmaceuticals Corporation
One Health Plaza
East Hanover, NJ 07936-1080

Once we've received your letter, we will mail a reply shortly. Please allow for U.S. Postal Service turnaround time. Response times may vary during U.S. holiday periods.