Corporate headquarters for LFB USA:
LFB USA, Inc.
Corporate headquarters for rEVO Biologics:
rEVO Biologics, Inc.
You are encouraged to report negative side effects for ATryn antithrombin (recombinant) at 1-800-455-1141 or to the FDA. Visit www.FDA.gov/MedWatch or call 1-800-FDA-1088.
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