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Welcome to CSL Behring Customer Support

Providing support and service to our United States customers

To place a product order call 800-683-1288 or email the Customer Support Department at

24-hour emergency shipping is available for the following emergency products: Afstyla®, Berinert®, Corifact®, Humate-P®, IDELVION®, Kcentra®, and RiaSTAP®. For a full list of CSL Behring products around the world, click here.

To ensure you are connecting to the correct place, please note our other company contact options:

To report an undesirable effect/adverse event, please email:
To report at Product Technical Complaint (PTC), please email, call 1-800-504-5434 or fax 1-610-290-0523
If you require information on your patient support program, please visit this page
CSL Behring King of Prussia

General Information

CSL Behring Corporate Headquarters
1020 First Avenue
P.O. Box 61501
King of Prussia, PA 19406-1310

Remit To:
PO Box 932032
Atlanta, GA 31193-2032