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United States· US:49281-645_775d34bb-508b-47ef-af40-d4dbf8ea132c

FLUZONE TRIVALENT NORTHERN HEMISPHERE

A medicinal product containing 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); influenza b virus b/tokyo/eis13-175/2025 antigen (formaldehyde inactivated), registered in United States by Sanofi Vaccines US Inc..

Checked against FDA National Drug Code directory (United States) on

Informational only — not a medical device.

SOURCE REGISTER · USFDA National Drug Code directory (Unite…normalisedFLUZONE TRIVALENT NORTHERN HEMISPHEREATC—REGISTER NO.US:49281-645_775d34bb…PACKS LISTED1CHECKEDSeptember 27, 2026
Compare price across countriesPer daily dose · free accountAsk the assistant about 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); influenza b virus b/tokyo/eis13-175/2025 antigen (formaldehyde inactivated)Answers with sources · free accountCheck interactionsSeverity free · mechanism on Growth

The record

At a glance

FDA National Drug Code directory (United States)
Active substance
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); INFLUENZA B VIRUS B/TOKYO/EIS13-175/2025 ANTIGEN (FORMALDEHYDE INACTIVATED)
Manufacturer
Sanofi Vaccines US Inc.
Country
United States (US)
ATC code
—
Reimbursed
Not published by this register
Source register
FDA National Drug Code directory (United States)
Last checked
September 27, 2026

Packs & prices · 1

  • ndc11
    49281-645-15

Regulatory notes

No shortage, Orange Book or US label notes for this record.

Sourced from a public register and reproduced with attribution. Drug Database is not affiliated with, endorsed by, or a partner of FDA National Drug Code directory (United States). This is an informational data service and not a medical device — verify against the official source of record before any clinical decision.

For developers

The same record over the API, and the raw payload
GET /v1/drugs/d98a2426-617d-4ac4-9003-56c5f25b3490
GET /v1/drugs/d98a2426-617d-4ac4-9003-56c5f25b3490?format=fhir

Every response carries last_synced_at, so freshness is a field rather than a promise. Below is exactly what the ingestion wrote, before any presentation — the same JSON the API returns under payload.

{
  "route": "INTRAMUSCULAR",
  "source": "ndc",
  "strength": "15; 15; 15",
  "substance": "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); INFLUENZA B VIRUS B/TOKYO/EIS13-175/2025 ANTIGEN (FORMALDEHYDE INACTIVATED)",
  "productndc": "49281-645",
  "dosage_form": "INJECTION, SUSPENSION",
  "dea_schedule": null,
  "strength_unit": "ug/.5mL; ug/.5mL; ug/.5mL",
  "application_number": "BLA103914",
  "marketing_category": "BLA"
}
API referenceMCP serverPlans

See everything about 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); influenza b virus b/tokyo/eis13-175/2025 antigen (formaldehyde inactivated).

This page is the registration. A free account adds the label text as the regulator wrote it, what it costs per daily dose across the markets that publish a price, a feed of what changes in the registers, and an assistant that answers with its sources. Interaction severity is free; mechanism and management are on the Growth plan. No card, nothing to install.

Try it freeOpen in the console