Respiratory Syncytial Virus Anti-F Protein Monoclonal Antibody

Where is Nirsevimab made?

1 company sell it under their own name. Their labels name 7 factories in the United States, Italy, South Korea and Canada.

United States 4Italy 1South Korea 1Canada 1
United States: 4Italy: 1South Korea: 1Canada: 1

Companies and their factories

Company on the labelFactoryWhereLast FDA inspection
Sanofi Vaccines US Inc. Beyfortus100 mg per 1 mL · NDC 49281-575, 49281-574 AstraZeneca Pharmaceuticals LPMakes the active ingredient and tests it Frederick, MD, United StatesProblems found, fixed voluntarilyJan 2023
Catalent Anagni S.R.L.Makes it and tests it Anagni (fontana Del Ceraso), ItalyProblems found, fixed voluntarilyFeb 2024
Patheon Manufacturing Services LLCMakes it and tests it Greenville, NC, United StatesNo problems foundSep 2025
Patheon Manufacturing Services LLCMakes it and tests it Ridgefield, NJ, United StatesProblems found, fixed voluntarilyMar 2024
Samsung Biologics Co., Ltd.Makes it, makes the active ingredient and tests it Incheon, South KoreaProblems found, fixed voluntarilySep 2023
Sanofi Vaccines Canada Ltd.Makes it North York, CanadaNot inspected on record
Sanofi Vaccines US Inc.Makes it, packages it and labels it Swiftwater, PA, United StatesProblems found, fixed voluntarilyApr 2023