🆔 Identity & classification
FDA NDC (as labeled)
63833-387-02
Product NDC
63833-387
11-digit billing NDC
63833038702
NCPDP billing unit
EA — each (per item)
Application #
BLA125421
SPL Set ID
eee1afb8-324c-42e4-8bf0-f0c9da5e6d42
DEA schedule
Non-controlled
Marketing category
BLA
Marketing status
On market
FDA listing status
Listed (active directory)
Marketing start
2013-12-13
Dosage form
KIT
GPI-14
85100060106430
GPI class
Kcentra
GCN Seq No
072239
GCN
36363
HICL code
035633
Ingredient (HICL)
Hum Prothrombin Cplx, 4-Factor
HIC1 code
M
Therapeutic class — broad (HIC1)
Blood
HIC2 code
M0
Therapeutic class — intermediate (HIC2)
Blood And Blood Replacement Preparations
HIC3 code
M0I
Therapeutic class — specific (HIC3)
Factor Ix Complex (Pcc) Preparations
AHFS code
20:28.16.00
AHFS class
Hemostatics
FDB label name
KCENTRA 1,000 UNIT VIAL
FDB brand name
Kcentra
Legend status
F — Federal legend — prescription drug or device
Biologic (Purple Book)
351(a)
Why two NDCs?
The FDA registers this code as 63833-387-02 — 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 → 63833-0387-02. 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.
🧪 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.
A current SPL was checked, but it does not contain a structured or narrative inactive-ingredient list for this product. This does not mean the product has no inactive ingredients.
Where does this data come from?
Source: official FDA Structured Product Labeling (SPL) via DailyMed and the openFDA label index. Structured IACT rows and label-wide narrative are kept separate; availability and product-level specificity depend on the submitted label.
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.
💲 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 system | Per each | Per 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 · quarterly |
No Part D plan price is available for this NDC in our data. |
| Medicare Part B allowsASP · J7165 |
No ASP payment limit on file for J7165 this quarter. |
ℹ️
No price is published for this exact package yet. CMS surveys NADAC per package size, so a different pack of the same drug often has one.
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.
⏳ Availability & biosimilar status
🏛️
2013
First FDA approval
Apr 2013
📍
2026
Currently FDA-listed
13 years listed
🔓
·
Biosimilar pathway open
listed protections lapsed 2025
🧬Biologic — competition comes from biosimilars
Biologics have no small-molecule generics; biosimilar competition is tracked in the FDA Purple Book.
🛡️ Latest patent/protection date listed: The latest listed FDA patent/protection lapsed Apr 2025 — those protections no longer apply, though a biosimilar still needs FDA licensure and a manufacturer to market it.
📅 FDA approved Apr 29, 2013
Why the date isn’t exact: Biosimilar timing can change because patents may be challenged, settled, licensed, added or removed, and litigation can move the real date earlier or later.
Patents & exclusivity — FDA Purple Book
2013
2015
2017
2019
2021
2023
2025
Biologic patent
Exclusivity
🏛️Reference-product exclusivity
A flat 12 years of FDA market protection from first licensure. No biosimilar can be licensed before it ends — regardless of patents.
🧪Listed biologic patents
Patents the reference maker lists covering the molecule, formulation, or manufacturing. A biosimilar generally can’t launch until these resolve.
🔁Interchangeability
An interchangeable biosimilar may be substituted at the pharmacy (state laws vary). The first one can earn its own exclusivity period.
🛈 What do these terms mean?
- Biologic patent
- A patent the reference product’s maker has publicly listed. A biosimilar generally can’t launch until these expire — unless they’re invalidated or resolved in a settlement.
- Reference-product exclusivity
- A flat 12 years of FDA market protection from the biologic’s first licensure (the BPCIA). No biosimilar can be licensed before it ends, regardless of patents.
- Interchangeable exclusivity
- The first interchangeable biosimilar can earn a period as the only interchangeable version (pharmacists can substitute it without the prescriber).
- Earliest biosimilar (LOE)
- The latest of all the dates above — the soonest a biosimilar can realistically reach the market. Litigation and settlements can move it earlier.
FDA exclusivity
| Code | What it grants | Expires |
| RefProduct | Reference-product exclusivity (12-year, BPCIA) — no biosimilar can be licensed before this date | Apr 29, 2025 |
Common questions
Is there a biosimilar for KCENTRA 1,000 UNIT VIAL?
No FDA-licensed biosimilar is currently listed for this biologic in the FDA Purple Book.
Why do different websites show different biosimilar dates?
Biosimilar availability isn’t based on one single date. Some sources use the reference-product exclusivity, some use the last listed patent, and patent litigation, settlements, and licenses can all change the real-world launch date. This page shows the underlying Purple Book dates so you can see why estimates differ.
Can a biosimilar launch before the last patent expires?
Sometimes. A biosimilar maker may settle with the reference manufacturer or receive a license to launch earlier. In other cases, the last listed protection delays competition.
What does “current Purple Book estimate” mean?
It means we’re using the latest patent and exclusivity dates currently listed in the FDA Purple Book. It is not a guaranteed launch date.
What does “FDA listed” mean?
It means the product appears in the FDA’s official directory. That’s a good sign a product exists for the U.S. market, but on its own it does not confirm a pharmacy can get it today. Where we have recent retail pricing data, we label it “Availability likely” instead.
What does a patent or protection date mean here?
It’s the latest date currently listed in the FDA Purple Book for a patent or exclusivity on the reference biologic. It can affect when a biosimilar becomes widely available — but it is not a guaranteed launch date. Settlements and licenses can move the real date earlier or later.
Built from the FDA Purple Book Patent List (patents the reference-product sponsor has publicly listed under the BPCIA) plus reference-product exclusivity. Biosimilars cannot launch until these clear; patent litigation and settlements can shift the real date. Biologics have no small-molecule generics — competition comes from FDA-licensed biosimilars, not the Orange 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.
🧭 About this NDC listing & data coverage
Kit / multi-component package
Kit / multi-component package
This NDC identifies a kit — a package containing more than one component. Structured data (pricing, ingredients, equivalents) is often reported per component rather than for the kit NDC itself, which can make this page look thinner than the components' own pages.
What data is (and isn’t) available for this NDC — tap to expand
| NDC identity (package / product / labeler codes) |
✓ Available
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| Labeler |
✓ Available
|
| Product & package description |
✓ Available
|
| Marketing category & status |
✓ Available
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| Active ingredient / dosage form / route |
✓ Available
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| FDA label (SPL via DailyMed) |
✓ Available
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| Package photos |
✓ Available
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| Inactive ingredients (structured) |
— Not published for this NDC
The labeler did not submit a structured excipient list, or no SPL is 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 |
✓ Available
|
| HCPCS J-code billing crosswalk |
✓ Available
|
| 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 FDA registers it as 63833-387-02, which is what is printed on the packaging and shown on DailyMed. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero: 63833-0387-02, written without dashes as 63833038702. The Identity section at the top of this page lists every form of this code.
What do the three segments of this NDC mean?
In 63833-0387-02, the first segment (63833) is the labeler code FDA assigned to CSL Behring GmbH; the middle segment (0387) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (02) identifies this exact package size and type. Together they name one specific package of one specific product.
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 CSL Behring GmbH. Listing status can change — the directory data on this page refreshes weekly.
Who lists this product with the FDA?
CSL Behring GmbH 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.
Does this product have a billing J-code?
Yes — this NDC cross-references HCPCS code J7165 for medical-claim billing (typically used when a product is administered in a clinical setting rather than dispensed at a retail pharmacy). See the Billing section on this page.
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.
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.