IMURAN azathioprine 50 mg Tablet, 100-count
by Legacy Pharma USA Inc. · 100 TABLET in 1 BOTTLE (83107-025-10)
NDC 83107-0025-10
🏷️ FDA NDC (as labeled)
83107-025-10
billing pads the product segment with a zero
Rx only
Brand
On market
Non-controlled
🗂️ Data synced Sep 17, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →
🆔 Identity & classification
FDA NDC (as labeled)
83107-025-10
Product NDC
83107-025
11-digit billing NDC
83107002510
Application #
NDA016324
SPL Set ID
4d62b6e4-a9d4-4818-e063-6394a90aa208
Established class (EPC)
Purine Antimetabolite
Mechanism of action
Nucleic Acid Synthesis Inhibitors
Chemical class
Nucleosides; Purines
DEA schedule
Non-controlled
Marketing category
NDA
Marketing status
On market
FDA listing status
Listed (active directory)
Marketing start
2026-09-10
Route
ORAL
Dosage form
TABLET
Substance
AZATHIOPRINE
TE code (Orange Book)
AB · RLD · RS
Why two NDCs?
The FDA registers this code as 83107-025-10 — 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 → 83107-0025-10. 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.
🏭 Manufacturer & labeler
LabelerLegacy Pharma USA Inc.
Application holderLEGACY PHARMA INC SEZC
FDA applicationNDA016324 (NDA)
Labeler code83107
First marketedSep 2026
Product typeHuman Prescription Drug
Portfolio18 products on file
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.
🩺 Clinical
📖 What it is MedlinePlus · NLM
Azathioprine is used with other medications to prevent transplant rejection (attack of the transplanted organ by the immune system) in people who received kidney transplants. It is also used to treat severe rheumatoid arthritis (a condition in which the body attacks its own joints, causing pain, swelling, and loss of function) when other medications and treatments have not helped. Azathioprine is in a class of medications called immunosuppressants. It works by decreasing the activity of the body's immune system so it will not attack the transplanted organ or the joints.
Read the full MedlinePlus article ↗📗 Our plain-language guide HelloPharmacist
- You're right that it treats two quite different conditions, but the common thread is the immune system. After a kidney transplant, your immune system sees the new kidney as foreign...
- What exactly is azathioprine being used for — it seems like a drug used for very different things?
- Azathioprine is not a quick fix — it typically takes 6 to 8 weeks before you start feeling any improvement, and your doctor will usually give it a full 12 weeks before deciding if...
- How long will it take before I notice it working for my rheumatoid arthritis?
Patient education
Supplement & herbal interactions
Some supplements/herbs that may interact with Azathioprine — tap one for details:
1
Nutrient depletion considerations
Azathioprine may be associated with lower levels of 1 nutrient — worth a chat with your pharmacist, not a cause for alarm.
An association is not a deficiency. Educational only — don't start or stop anything without professional guidance.
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.
💬 Questions about azathioprine?
Ask a pharmacist →
Ask a licensed pharmacist directly — free, answered by our team.
💊 What it looks like
Color
yellow
ShapeDouble Circle
ImprintIMURAN;50
Size11 mm
ScoringScored — splits in 2
One label can cover several strengths, so colors may be combined — always confirm a loose pill against the dispensed prescription label or a pharmacist.
Where does this data come from?
Physical description (imprint, shape, color, scoring, coating) from this product’s FDA Structured Product Labeling (SPL), mirrored from DailyMed / openFDA.
🧪 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 J2B2A4N98G
Lactose is a natural sugar derived from milk. In medications, it serves as a filler and binder to add bulk and help hold tablet or capsule ingredients together during manufacturing.
-
UNII 70097M6I30
Magnesium stearate is a salt made from magnesium and stearic acid, a fatty substance. It's used in tablets and capsules as a lubricant and glidant to help ingredients flow smoothly during manufacturing and prevent sticking.
-
UNII FZ989GH94E
Povidone is a synthetic polymer made from a plastic-like material. It acts as a binder to hold tablet ingredients together and as a disintegrant to help the tablet break apart in your stomach so the medicine can be absorbed.
-
UNII 8I089SAH3T
A carbohydrate powder extracted from potatoes. It serves as a filler to add bulk and volume to the tablet or capsule, and as a disintegrant to help the medicine break apart and release its active ingredient in your body.
-
UNII 4ELV7Z65AP
Stearic acid is a fatty acid derived from plant or animal sources. It acts as a binder and lubricant in tablets and capsules, helping them hold together and flow smoothly during manufacturing.
5 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.
💲 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. | |
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.
🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Azathioprine 50 mg 16571-0835-01 | Rising | 100 tablets | $0.125 | AB | Availability likely | — |
| Azathioprine 50 mg 67877-0493-01 | Ascend | 100 tablets | $0.125 | AB | Availability likely | — |
| Azathioprine 50 mg 68462-0502-01 | Glenmark | 100 tablets | $0.125 | AB | Availability likely | — |
| Azathioprine 50 mg 60219-1076-01 | Amneal | 100 tablets | $0.125 | AB | Availability likely | — |
| Azathioprine 50 mg 68382-0003-01 | Zydus | 100 tablets | $0.125 | AB | Availability likely | — |
| Azathioprine 50 mg 68084-0229-01 | American | 100 tablets | $0.125 | AB | Availability likely | — |
| Imuran 50 mg 54766-0590-10 | Sebela | 100 tablets | $8.891 | AB | Availability likely | — |
| Azathioprine 50 mg 71610-0124-09 | Aphena | 9000 tablets | — | AB | FDA listed | — |
| Azathioprine 50 mg 69238-1076-01 | Amneal | 100 tablets | — | AB | FDA listed | — |
| Azathioprine 50 mg 51407-0182-01 | Golden | 100 tablets | — | AB | FDA listed | — |
| Azathioprine 50 mg 68071-3772-06 | NuCare | 60 tablets | — | AB | FDA listed | — |
| Azathioprine 50 mg 70518-3544-00 | REMEDYREPACK | 100 tablets | — | AB | FDA listed | — |
| Azathioprine 50 mg 42291-0071-01 | AvKARE | 100 tablets | — | AB | FDA listed | — |
| Azathioprine 50 mg 68071-3997-06 | NuCare | 60 tablets | — | AB | FDA listed | — |
| Azathioprine 50 mg 65841-0602-01 | Zydus | 100 tablets | — | AB | FDA listed | — |
| Azathioprine 50 mg 72789-0129-30 | PD-Rx | 30 tablets | — | AB | FDA listed | — |
| Imuran 50 mgthis 83107-0025-10 | Legacy | 100 tablets | — | AB | FDA listed | — |
About this product: this is the brand-name version. FDA-approved generic versions are listed, and recent pricing/market data suggests they may be available.
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 & generic status
🏛️
2026
On the market since
Sep 2026
📍
2026
Currently FDA-listed
listed with the FDA
🔓
·
Generic versions listed
see equivalents
✅Generic appears available
FDA-approved generic versions are listed, and recent pricing/market data suggests they may be available — see Therapeutic equivalents.
Where does this data come from?
Patents and exclusivity from the FDA Orange Book (small-molecule drugs), refreshed from public FDA data. Generic launch timing is an estimate, not a guarantee.
📊 Medicare Part D spend CMS · PART D · 2026 (Q1)
Medicare Part D (outpatient prescription) spending for Imuran — 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 Imuran. 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
$93K
Claims incl. refills
110
Beneficiaries
67
Spend / beneficiary
$1,388.20
Spend / claim
$845.54
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.
🔬 Reported adverse events (FAERS)
Read carefully: FAERS reports are voluntary and unverified. Counts are not incidence, do not establish causation, are subject to reporting bias, and cannot be used to compare one drug to another. Shown for signal context only. Reports for Azathioprine — the ingredient across all brands.
Top reported reactions
Age at onset
Reporter sex
Male · 38%
Female · 62%
Unknown · 0%
Serious outcomes
Reports over time (by year) — tap or hover for the count & year
Most recent year is provisional (FAERS lags ~3 months).
Where does this data come from?
Adverse-event reports from the FDA Adverse Event Reporting System (FAERS) via openFDA. FAERS reports are voluntary and unverified — counts are not incidence and don’t establish causation.
📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 83107-0025-10 You're viewing this | 100 TABLET in 1 BOTTLE (83107-025-10) | 2026-09-10 | Active |
🧭 About this NDC listing & data coverage
Finished prescription product
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 | ✓ Available |
| 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 FDA registers it as 83107-025-10, 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: 83107-0025-10, written without dashes as 83107002510. 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 83107-0025-10, the first segment (83107) is the labeler code FDA assigned to Legacy Pharma USA Inc.; the middle segment (0025) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (10) 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 Legacy Pharma USA Inc.. Listing status can change — the directory data on this page refreshes weekly.
Who lists this product with the FDA?
Legacy Pharma USA 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.
Do I need a prescription for this product?
This NDC is listed with FDA as a prescription product, so it is dispensed under a prescriber's order. Your pharmacist can tell you whether any over-the-counter forms of the same medication exist.
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.
📄 Full prescribing information FDA SPL
The complete FDA label for this product — the official prescribing information, verbatim, section by section. Jump with a chip, search within the label, or expand everything.
📄 FDA label ▾
No FDA label is on file for this product yet. Labels load from openFDA / DailyMed and refresh weekly.
No label section mentions that — try another word, or open the full label on DailyMed below.
Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA.
Prefer the government’s original formatting? View this label on DailyMed ↗
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.