49281-426 NDC - FLUZONE TRIVALENT NORTHERN HEMISPHERE (INFLUENZA A VIRUS A/SWITZERLAND/6849/2025 IVR-278 (H1N1) ANTIGEN (FORMALDEHYDE INACTIVATED), INFLUENZA A VIRUS A/MICHIGAN/105/2025 SAN-049A (H3N2) ANTIGEN (FORMALDEHYDE INACTIVATED), AND INFLUENZA B VIRUS B/TOKYO/EIS13-175/2025 ANTIGEN (FORMALDEHYDE INACTIVATED))

Drug Information

  • Product NDC: 49281-426
  • Proprietary Name: FLUZONE TRIVALENT NORTHERN HEMISPHERE
  • Non Proprietary Name: INFLUENZA A VIRUS A/Switzerland/6849/2025 IVR-278 (H1N1) ANTIGEN (FORMALDEHYDE INACTIVATED), INFLUENZA A VIRUS A/Michigan/105/2025 SAN-049A (H3N2) ANTIGEN (FORMALDEHYDE INACTIVATED), and INFLUENZA B VIRUS B/Tokyo/EIS13-175/2025 ANTIGEN (FORMALDEHYDE INACTIVATED)
  • Active Ingredient(s): 15 ug/.5mg INFLUENZA A VIRUS A/MICHIGAN/105/2025 SAN-049A (H3N2) ANTIGEN (FORMALDEHYDE INACTIVATED); 15 ug/.5mg INFLUENZA A VIRUS A/SWITZERLAND/6849/2025 IVR-278 (H1N1) ANTIGEN (FORMALDEHYDE INACTIVATED); 15 ug/.5mg INFLUENZA B VIRUS B/TOKYO/EIS13-175/2025 ANTIGEN (FORMALDEHYDE INACTIVATED)
  • Administration Route(s): INTRAMUSCULAR
  • Dosage Form(s): INJECTION, SUSPENSION

Labeler Information

Field Name Field Value
Labeler Name: Sanofi Vaccines US Inc.
Product Type: VACCINE
FDA Application Number: BLA103914
Marketing Category: BLA
Start Marketing Date:7/2/2024
End Marketing Date:6/30/2027

Package Information

No. Package Code Package Description Billing Unit
149281-426-5010 SYRINGE, GLASS in 1 PACKAGE (49281-426-50) / .5 mg in 1 SYRINGE, GLASS (49281-426-88)

NDC Record

Field Name Field Value Definition
PRODUCT NDC49281-426The labeler code and product code segments of the National Drug Code number, separated by a hyphen. Asterisks are no longer used or included within the product code segment to indicate certain configurations of the NDC.
PRODUCT TYPE NAMEVACCINEIndicates the type of product, such as Human Prescription Drug or Human Over the Counter Drug. This data element matches the “Document Type” field of the Structured Product Listing.
PROPRIETARY NAMEFLUZONE TRIVALENT NORTHERN HEMISPHEREThe proprietary name also known as the trade name is the name of the product chosen by the medication labeler for marketing purposes.
NON PROPRIETARY NAMEINFLUENZA A VIRUS A/Switzerland/6849/2025 IVR-278 (H1N1) ANTIGEN (FORMALDEHYDE INACTIVATED), INFLUENZA A VIRUS A/Michigan/105/2025 SAN-049A (H3N2) ANTIGEN (FORMALDEHYDE INACTIVATED), and INFLUENZA B VIRUS B/Tokyo/EIS13-175/2025 ANTIGEN (FORMALDEHYDE INACTIVATED)The non-proprietary name is sometimes called the generic name. The generic name usually includes the active ingredient(s) of the product.
DOSAGE FORM NAMEINJECTION, SUSPENSIONThe translation of the dosage form Code submitted by the firm.
ROUTE NAMEINTRAMUSCULARThe translation of the route code submitted by the firm, indicating route of administration.
START MARKETING DATE7/2/2024This is the date that the labeler indicates was the start of its marketing of the drug product.
END MARKETING DATE6/30/2027This is the date the product will no longer be available on the market. If a product is no longer being manufactured, in most cases, the FDA recommends firms use the expiration date of the last lot produced as the EndMarketingDate, to reflect the potential for drug product to remain available after manufacturing has ceased. Products that are the subject of ongoing manufacturing will not ordinarily have any EndMarketingDate. Products with a value in the EndMarketingDate will be removed from the NDC Directory when the EndMarketingDate is reached.
MARKETING CATEGORY NAMEBLAProduct types are broken down into several potential Marketing Categories, such as NDA/ANDA/BLA, OTC Monograph, or Unapproved Drug. One and only one Marketing Category may be chosen for a product, not all marketing categories are available to all product types. Currently, only final marketed product categories are included. The complete list of codes and translations can be found at www.fda.gov/edrls under Structured Product Labeling Resources.
APPLICATION NUMBERBLA103914This corresponds to the NDA, ANDA, or BLA number reported by the labeler for products which have the corresponding Marketing Category designated. If the designated Marketing Category is OTC Monograph Final or OTC Monograph Not Final, then the Application number will be the CFR citation corresponding to the appropriate Monograph (e.g. “part 341”). For unapproved drugs, this field will be null.
LABELER NAMESanofi Vaccines US Inc.Name of Company corresponding to the labeler code segment of the Product NDC.
SUBSTANCE NAMEINFLUENZA A VIRUS A/MICHIGAN/105/2025 SAN-049A (H3N2) ANTIGEN (FORMALDEHYDE INACTIVATED); INFLUENZA A VIRUS A/SWITZERLAND/6849/2025 IVR-278 (H1N1) ANTIGEN (FORMALDEHYDE INACTIVATED); INFLUENZA B VIRUS B/TOKYO/EIS13-175/2025 ANTIGEN (FORMALDEHYDE INACTIVATED)An active ingredient is the substance responsible for the medicinal effects of a product specified by the substance's molecular structure or if the molecular structure is not known, defined by an unambiguous definition that identifies the substance. Each active ingredient name is the preferred term of the UNII code submitted.
ACTIVE NUMERATOR STRENGTH15; 15; 15 
ACTIVE INGRED UNITug/.5mg; ug/.5mg; ug/.5mg 

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This page was last updated on: 7/7/2026

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