Contact Us

Thank you for your interest in contacting Janssen Biotech, Inc., and Legend Biotech. Please note that we can only provide information about products marketed within the United States, and must refer international inquiries to our affiliates.

Janssen will be happy to answer any general product-related questions. However, we cannot recommend treatment or offer medical advice on personal health matters. If you have a question that relates to treatment of a personal medical condition, please contact your physician or healthcare professional, as this individual is most familiar with your specific medical condition and complete medical history.

If you require immediate assistance, please call 911.

If you wish to report a side effect or product complaint, Janssen Medical Information can be reached by phone at 1-800-JANSSEN (1-800-526-7736), Monday to Friday, 9 AM - 8 PM Eastern Time.


Please call: 1-800-JANSSEN (1-800-526-7736)
Monday to Friday, 9 AM - 8 PM Eastern Time.

MyCARVYKTI® Patient Support Program Phone Number


If you prefer to correspond with us via regular mail, or have inquiries regarding vendor opportunities or marketing/product suggestions, please use the following address:

Janssen Scientific Affairs Medical Information Center
PO Box 200
Titusville, NJ 08560

You are encouraged to report negative side effects of prescription drugs to the Food and Drug Administration (FDA).
Visit or call 1-800-FDA-1088.