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YF-VAX YELLOW FEVER VIRUS STRAIN 17D-204 LIVE ANTIGEN 17D-204 LIVE ANTIGEN 4.74 [PFU]/.5mL Injection, Powder, Lyophilized, For Suspension, 5 vials — NDC 49281-0915-01 package photo
Label image from the product's FDA listing (DailyMed) — may show a different pack size or an older label revision.

YF-VAX YELLOW FEVER VIRUS STRAIN 17D-204 LIVE ANTIGEN 17D-204 LIVE ANTIGEN 4.74 [PFU]/.5mL Injection, Powder, Lyophilized, For Suspension, 5 vials — NDC 49281-915-01 (Billing 49281-0915-01)

by Sanofi Vaccines US Inc. · 5 VIAL, SINGLE-DOSE in 1 PACKAGE / .5 mL in 1 VIAL, SINGLE-DOSE

This is a package of 5 vials of YF-VAX YELLOW FEVER VIRUS STRAIN 17D-204 LIVE ANTIGEN 17D-204 LIVE ANTIGEN 4.74 [PFU]/.5mL Injection, Powder, Lyophilized, For Suspension from Sanofi Vaccines US Inc., marketed since May 1953 and currently FDA-listed. It is the main listing for this product, which comes in 2 package sizes.

NDC 49281-0915-01
🏷️ FDA NDC (as labeled) 49281-915-01 billing pads the product segment with a zero
This package
Contains5 vials Pack sizes2 compare ↓
Also priced by: Part D plans $245.79/unit — full pricing hub ↓
Main listing for product 49281-915 · Also comes in: 2.5 mL 49281-915-05
Brand On market Non-controlled ⇄ Compare with another NDC
🗂️ FDA directory synced Oct 8, 2026 · this listing last changed Oct 8, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

This page is curated, coded, and maintained by

Compiled from public FDA, CMS, DailyMed, NADAC, and related drug data sources. Editorial policy

NDC database record

One package, one record: these facts belong to NDC 49281-915-01 alone.

Record
FDA NDC Directory package listing · Vaccine
Code segments
49281 labeler · 915 product · 01 package
Package marketed since
May 22, 1953
Sample package
No — commercial package
Listing certified through
Dec 31, 2027
Billing quantity
5 EA per package
Barcode (UPC-A, from the NDC)
3 4928191501 7
FDA record last changed
Oct 8, 2026

Identity & classification

Regulatory identifiers FDA, NLM and CMS codes for this package

FDA NDC (as labeled) 49281-915-01
Product NDC 49281-915
11-digit billing NDC 49281091501
NCPDP billing unit EA — each (per item)
Application # BLA103915
SPL Set ID 613aaac9-ec18-4b22-addb-599e1193e6f5
Established class (EPC) Live Attenuated Yellow Fever Virus Vaccine; Vaccines
Physiologic effect Actively Acquired Immunity
Chemical class Attenuated; Yellow Fever Vaccine
DEA schedule Non-controlled
Marketing category BLA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 1953-05-22
Route SUBCUTANEOUS
Dosage form INJECTION, POWDER, LYOPHILIZED, FOR SUSPENSION
Substance YELLOW FEVER VIRUS STRAIN 17D-204 LIVE ANTIGEN
Biologic (Purple Book) 351(a)

Drug-database identifiers Medi-Span GPI and First Databank GCN / HICL / AHFS classification

GCN Seq No 063989
GCN 99700
HICL code 035598
Ingredient (HICL) Yellow Fever Vaccine Live/Pf
HIC1 code W
Therapeutic class — broad (HIC1) Anti-Infecting Agents
HIC2 code W7
Therapeutic class — intermediate (HIC2) Biologicals
HIC3 code W7J
Therapeutic class — specific (HIC3) Neurotoxic Virus Vaccines
AHFS code 80:12.00.00
AHFS class Vaccines
FDB label name YF-VAX 1 DOSE VIAL
FDB brand name Yf-Vax
Legend status F — Federal legend — prescription drug or device
Quick answers
  • GSN (GCN sequence number): 063989
  • GCN: 99700
  • HICL (First Databank): 035598
  • AHFS class code: 80:12.00.00
Why two NDCs? The FDA registers this code as 49281-915-01 — a 5-3-2 layout, and that's what's printed on the package and shown on DailyMed. For insurance claims, every NDC is standardized to a uniform 11-digit 5-4-2 format by adding a zero to the product segment → 49281-0915-01. Same drug, same package — only the format differs.
Where does this data come from?
Identifiers from the FDA openFDA NDC Directory and Structured Product Labeling; RxCUI from RxNorm (NLM); GPI from Medi-Span; GCN / HIC / AHFS / legend from First Databank.

Clinical

Label name YF-VAX 1 DOSE VIAL Ingredient Yellow Fever Vaccine Live/Pf
📖 What it is MedlinePlus · NLM

Why get vaccinated? Yellow fever vaccine may prevent yellow fever that may occur with infection due to the yellow fever virus which is spread by the bite of an infected mosquito. Infection with yellow fever virus may not cause symptoms or can cause the following: a flu-like illness that can lead to life-threatening infection throughout the body including the liver, kidney, GI tract, and brain. Yellow fever vaccine contains live virus that has been weakened so it does not cause disease but can still stimulate the body to make antibodies against the virus to provide a defense against potentia...

Read the full MedlinePlus article ↗

Supplement & herbal interactions

🌿 Drug–supplement interaction checker →
Where does this data come from?
Plain-language summary from MedlinePlus (U.S. National Library of Medicine); supplement & herbal interactions and nutrient depletion data from the Natural Medicines database; our full guide is HelloPharmacist editorial content.

Pricing

A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.

Price systemPer mLPer package
Retail pharmacies payNADAC · weekly Not in the retail survey — common for institutional, discontinued, or low-volume packs.
Medicaid paysCMS SDUD · 12 mo No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data.
Medicare drug plans payPart D · Q2 2026 $245.79 $614.47 / 2.5 ml
Where does this data come from?
NADAC (National Average Drug Acquisition Cost) is the CMS weekly pharmacy-acquisition-cost survey — what pharmacies pay. ASP (Average Sales Price) is the CMS Medicare Part B drug-payment file, published quarterly. Medicaid pays is computed by us from CMS State Drug Utilization Data (total reimbursed ÷ units, trailing 12 months) — gross of rebates and inclusive of dispensing fees, so it reflects what Medicaid paid, not an acquisition cost. Medicare drug plans pay is the median negotiated point-of-sale unit cost across plans listing this NDC in the CMS quarterly Prescription Drug Plan pricing files, before rebates. The VA pays is the federal contract price (FSS, and the statutory Big 4 ceiling where listed) from the VA National Acquisition Center pharmaceutical price file. All are free public government data; each measures a different payer, so the figures are not directly comparable.

Packaging — all sizes for this product

Package NDCDescription Marketing startMarketing endStatus
49281-0915-01 You're viewing this Main listing 5 VIAL, SINGLE-DOSE in 1 PACKAGE / .5 mL in 1 VIAL, SINGLE-DOSE 1953-05-22 — Active
49281-0915-05 49281-915-05 1 VIAL, MULTI-DOSE in 1 PACKAGE / 2.5 mL in 1 VIAL, MULTI-DOSE 1953-05-22 — Active

Pack size FAQ

What quantity is in this package?
This package contains 5 vials — 5 vial, single-dose in 1 package / .5 ml in 1 vial, single-dose.
How does this package differ from NDC 49281-0915-05?
Both are YF-VAX YELLOW FEVER VIRUS STRAIN 17D-204 LIVE ANTIGEN 17D-204 LIVE ANTIGEN 4.74 [PFU]/.5mL Injection, Powder, Lyophilized, For Suspension — the drug itself is identical. This page's package is the 5 vials one, while NDC 49281-0915-05 is the 1 vial package.
What NDC number is used to bill for this package of YF-VAX YELLOW FEVER VIRUS STRAIN 17D-204 LIVE ANTIGEN 17D-204 LIVE ANTIGEN 4.74 [PFU]/.5mL Injection, Powder, Lyophilized, For Suspension?
Use the 11-digit billing form listed in the identifiers section of this page. Pharmacy and medical claims use the 11-digit form; the FDA label may print a shorter form of the same code.

Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Yf-Vax 17D-204 LIVE ANTIGEN 4.74 [PFU]/.5mLthis 49281-0915-01 Sanofi 5 vials — — FDA listed —
About this product: this is a biologic. Biologics don't have small-molecule generics — competition comes from FDA-licensed biosimilars (shown above), not generics.
Where does this data come from?
Equivalents are other NDCs of the same ingredient, form and route from the openFDA NDC Directory, ranked least-expensive-first by NADAC. Therapeutic-equivalence (AB) ratings come from the FDA Orange Book; biologics use the FDA Purple Book for biosimilar & interchangeable status.

Availability & biosimilar status

🏛️
1999
First FDA approval
Dec 1999
📍
2026
Currently FDA-listed
27 years listed
🧬
·
Biosimilars
see Purple Book
🧬Biologic — competition comes from biosimilars

Biologics have no small-molecule generics; biosimilar competition is tracked in the FDA Purple Book.

Where does this data come from?
Patents and exclusivity from the FDA Purple Book (biologics), refreshed from public FDA data. Biosimilar launch timing is an estimate, not a guarantee.

Inactive Ingredients / Excipients

Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.

💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.

  • UNII 2G86QN327L
    Gelatin is a protein derived from animal collagen, commonly used in medicines as a gelling agent and capsule material. It helps create soft or hard capsule shells that hold and release medication, and can also thicken liquid formulations.
  • UNII 506T60A25R
    Sorbitol is a natural sugar alcohol derived from glucose. It serves as a sweetener, humectant, and bulking agent in medications to improve taste and help maintain moisture in the product.

2 inactive ingredients listed in the exact product block matched to this NDC.

Where does this data come from?
Data sourced from official FDA Structured Product Labeling (SPL) via DailyMed — ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.

Inactive ingredient FAQ

Are inactive ingredients the same for every manufacturer?
No. Inactive ingredients can differ by manufacturer, dosage form, strength, and package / product version.
Why might an inactive ingredient be missing?
Some SPLs do not provide a complete structured inactive-ingredient list, and older or unusual labels may only include the information in narrative text.
Can inactive ingredients matter?
Yes. They can matter for allergies, intolerances, dyes, gluten / lactose concerns, preservatives, and formulation differences — but confirm with a pharmacist or the manufacturer when it’s clinically important.

Manufacturer & labeler

LabelerSanofi Vaccines US Inc.
FDA applicationBLA103915 (BLA)
Labeler code49281
First marketedMay 1953
Product typeVaccine
Portfolio27 products on file

More NDCs from Sanofi Vaccines US Inc. labeler code 49281

The labeler markets the product; the application holder owns the FDA approval. They’re often the same company but can differ (e.g. a repackager or an authorized generic). A mailing address / phone appears here when the manufacturer includes it in the product’s FDA label (not all do).
Where does this data come from?
Labeler, application holder and registered establishment from the FDA openFDA NDC Directory and Drugs@FDA; address/contact from the product’s FDA label.

Full FDA label FDA SPL

The complete FDA label for this product, verbatim, section by section. Jump with a chip, search within the label, or expand everything.
📄 FDA label
📄 FDA label 19 words ▾

No FDA label is on file for this product yet. Labels load from openFDA / DailyMed and refresh weekly.

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA. Prefer the government’s original formatting? View this label on DailyMed ↗

Medicare Part D spend CMS · PART D · 2026 (Q1)

Medicare Part D (outpatient prescription) spending for Yf-Vax — the program that covers self-administered drugs. 1 manufacturer.
⚠️ Drug-level data: CMS publishes Part D spending by drug, not by NDC — these figures combine every manufacturer, strength and package size sold under the name Yf-Vax. That’s a different level of aggregation than the Medicaid card above, which is specific to this exact 11-digit NDC (pack size included), so the two aren’t directly comparable.
Period
Total Part D spend
$711.9K
Claims incl. refills
2.7K
Beneficiaries
2.7K
Spend / beneficiary
$267.22
Spend / claim
$266.92
Trend by period
💵 About the dollar figures: spending is what Part D plans paid before confidential manufacturer rebates, so the program’s real net cost is lower. A blank patient count means fewer than 11 people — CMS hides counts that small to protect privacy. Source: CMS Medicare Quarterly Part D Spending by Drug (data.cms.gov), updated quarterly.

About this NDC listing & data coverage

What data is (and isn’t) available for this NDC — tap to expand
NDC identity (package / product / labeler codes) ✓ Available
Labeler ✓ Available
Product & package description ✓ Available
Marketing category & status ✓ Available
Active ingredient / dosage form / route ✓ Available
FDA label (SPL via DailyMed) ✓ Available
Package photos ✓ Available
Inactive ingredients (structured) ✓ Available
NADAC pharmacy acquisition price (CMS) — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey.
Orange Book / therapeutic-equivalence data — Not published for this NDC Applies only to products approved under an NDA/ANDA; many listings are out of scope.
HCPCS J-code billing crosswalk — Not published for this NDC Most self-administered / retail products have no J-code — that is normal.
Medicaid utilization (CMS SDUD) — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold.
“Not published” reflects what the public FDA / CMS / NLM sources provide for this exact package code — it is a property of the data feeds, not a judgment about the product.

Questions about this listing

Why is there no price listed?
The pricing shown on our NDC pages comes from CMS NADAC, a voluntary survey of retail community pharmacy invoices. CMS does not publish a NADAC for every NDC — packages outside the retail survey (institutional and hospital products, bulk packages, discontinued items, and many OTC items) may never receive one. A missing price reflects the survey's scope, not this product's actual cost, and does not mean the product is free or unavailable.
Is the NDC printed on the package the same as the 11-digit billing NDC?
Yes, they identify this exact package in different formats. The form printed on the packaging and shown on DailyMed is the one the FDA registered. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero and the dashes are dropped. The Identity section at the top of this page lists each form of this code.
Is this package still being marketed?
Yes, per the latest FDA NDC Directory data on this page: this package is listed as actively marketed, with no marketing end date reported by Sanofi Vaccines US Inc.. Listing status can change — the directory data on this page refreshes weekly.
Does this product come in other package sizes?
Yes — the FDA directory lists 1 other package presentation of this same product, including 1 vial (49281-0915-05). Each has its own NDC and its own page — see the package list near the top of this page.
Who lists this product with the FDA?
Sanofi Vaccines US Inc. is the labeler of record for this NDC — the company under whose FDA-assigned code the package is listed. The labeler may be the manufacturer itself or a distributor marketing the product under its own code.
This page identifies an FDA-listed package (the NDC) and reports public regulatory and pricing data about the listing. It is reference information, not a medical recommendation — talk to your pharmacist or prescriber about your own medication.
Where does this data come from?
Listing facts (marketing category, packager status, marketing dates) from the FDA openFDA NDC Directory; label availability from DailyMed; pricing coverage from CMS NADAC; equivalence scope from the FDA Orange Book.
← 49281-0912-05 · Sanofi 49281-0926-50 · Sanofi →
For educational and professional reference only — not medical advice. Pricing reflects published NADAC and CMS ASP (free public data) and may differ from your acquisition cost; always verify before billing or dispensing.