Contact Us

If your question is about a medical condition, then you should consult with a healthcare professional or, in the case of an emergency, call 911 immediately.

Standard business hours for CSL Behring are 8:30 AM to 5:00 PM Eastern Time.

CSL Behring Headquarters
Phone: 610-878-4000
Fax: 610-878-4009
Location: North America Headquarters
Address: P.O. Box 61501
1020 First Avenue
King of Prussia, PA 19406 USA
 
Consumer Affairs
For Consumer Information
Phone: 888-508-6978
Fax: 610-878-4008
 
Medical Affairs
Phone: 800-504-5434
Fax: 610-878-4007
 
Adverse Events
To Report an Adverse Event
Phone: 610-878-4193
Phone: 866-915-6958 (24-hour toll free number)

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