Overview

Active ingredients: Influenza a virus a/missouri/11/2025 (H1n1) recombinant hemagglutinin antigen, Influenza a virus a/darwin/1415/2025 (H3n2) recombinant hemagglutinin antigen, Influenza b virus b/pennsylvania/14/2025 recombinant hemagglutinin antigen. Each product below links to its own NDC page with package NDCs in 10- and 11-digit form.

Generic name
INFLUENZA A VIRUS A/Missouri/11/2025 (H1N1) RECOMBINANT HEMAGGLUTININ ANTIGEN, INFLUENZA A VIRUS A/Darwin/1415/2025 (H3N2) RECOMBINANT HEMAGGLUTININ ANTIGEN, and INFLUENZA B VIRUS B/Pennsylvania/14/2025 RECOMBINANT HEMAGGLUTININ ANTIGEN
Strengths
Influenza a virus a/missouri/11/2025 (H1n1) recombinant hemagglutinin antigen 45 ug/.5mL; Influenza a virus a/darwin/1415/2025 (H3n2) recombinant hemagglutinin antigen 45 ug/.5mL; Influenza b virus b/pennsylvania/14/2025 recombinant hemagglutinin antigen 45 ug/.5mL
Dosage forms
Injection
Routes
Intramuscular
HCPCS / J-code
None in Med-Code's directory for these products
Package NDCs
1

NDC codes

Newest listings first. Each row links to the product’s NDC page.

Flublok Trivalent Northern Hemisphere NDC Codes: finished products
ProductStrengthForm · routeLabelerProduct NDCPackage NDCs (11-digit)HCPCS
Flublok Trivalent Northern Hemisphereinfluenza a virus a/missouri/11/2025 (h1n1) recombinant hemagglutinin antigen, influenza a virus a/darwin/1415/2025 (h3n2) recombinant hemagglutinin antigen, and influenza b virus b/pennsylvania/14/2025 recombinant hemagglutinin antigenInfluenza a virus a/missouri/11/2025 (H1n1) recombinant hemagglutinin antigen 45 ug/.5mL + 2 more ingredientsInjectionIntramuscularSanofi Vaccines US Inc.49281-72649281-0726-10—

Flublok Trivalent Northern Hemisphere: common questions

What is the NDC for Flublok Trivalent Northern Hemisphere?
Flublok Trivalent Northern Hemisphere has 1 product NDC, one for each strength, dosage form and labeler; each product NDC then has one package NDC per package size. Pick the row for your product above to see its package NDCs.
Is there a J-code for Flublok Trivalent Northern Hemisphere?
Med-Code's curated HCPCS directory has no drug-specific code for these products. Drugs dispensed by a pharmacy are billed by NDC. NDC vs J-code.
Which NDC goes on a claim?
The package NDC of what was given, in 11-digit form. How to convert a 10-digit NDC.

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