Contact Us

For general inquiries, please contact our Global Headquarters at 1-475-230-2596.

To report an adverse event experience for any Alexion product, please contact us at AdverseEventReporting@alexion.com or 1-844-259-6783.

To report an issue or complaint with an Alexion product, please contact us at  ProductComplaints@alexion.com.

To report a compliance or ethics concern, please visit www.AZEthics.com. 

For KANUMA, KOSELUGO, SOLIRIS, STRENSIQ, or ULTOMIRIS order inquires, customer operations, case management, medical information, product complaints, or to inquire about the SOLIRIS REMS program or ULTOMIRIS REMS program, please call 1-888-765-4747. 

For information on KANUMA, SOLIRIS, or ULTOMIRIS returns in the U.S., please review our Return Goods Policy here. For information on KOSELUGO returns in the U.S., please review our Return Goods Policy here. 

Alexion product and customer assistance

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