The short version
17 companies supply this market — deep enough that no single failure threatens the supply. The generic price is down 9% over the past year, to $0.1249 per unit. The brand runs $8.89 per unit — 71× more.
Market view
azathioprine · Tablet
53 marketed package NDCs · 17 active manufacturers
Most dispensed: 50 mg · Tablet · #100 tablets/bottle · 100 mg · Tablet · #100 tablets/bottle · 75 mg · Tablet · #100 tablets/bottle · 50 mg · Tablet · #500 tablets/bottle
Price range and competition
RSS: changes for this drugpriced separately — they are not the same market
Generic products only. Every company selling this drug reports its own price. The line follows the middle of the pack; the shaded band holds the middle half of companies — the wider it is, the more they disagree.
Latest · Sep 2026 — typical price $0.1249 · middle half $0.1249–$3.03 · full range $0.1249–$7.65 · 12 products · 17 companies
ⓘ How this was built
Data sources
- CMS NADAC weekly survey + monthly archives back to 2013 (data.medicaid.gov)
- CMS Federal Upper Limit files (weighted AMP)
- FDA NDC Directory (openFDA) — maker roster
Method
Each month's band spans the NADAC unit prices of every NDC of this drug (min, quartiles, median, max), split into brand and generic cohorts by FDA marketing category. Maker counts come from distinct labelers with the NDC actively listed.
Pipeline and calculations built by Claude (Fable 5) from the public datasets above. Educational only — verify against primary sources before acting.
What changed in the last 90 days
Every detected change for azathioprine, newest first — price moves, shortages, recalls, and manufacturers entering or leaving. Detected by comparing each day’s federal data against the day before.
- AzathioprineAug 19, 2026Price downNADAC $0.12824 → $0.12486 per unit (-2.64%)
- AzathioprineAug 19, 2026Price upNADAC $2.86529 → $3.03387 per unit (+5.88%)
- AzathioprineAug 19, 2026Price upNADAC $7.56812 → $7.64868 per unit (+1.06%)
- AzathioprineAug 19, 2026Price downNADAC $0.12824 → $0.12486 per unit (-2.64%)
- AzathioprineAug 19, 2026Price downNADAC $0.12824 → $0.12486 per unit (-2.64%)
- AzathioprineAug 19, 2026Price downNADAC $0.12824 → $0.12486 per unit (-2.64%)
- AzathioprineAug 19, 2026Price downNADAC $0.12824 → $0.12486 per unit (-2.64%)
- AzathioprineAug 19, 2026Price downNADAC $0.12824 → $0.12486 per unit (-2.64%)
- AzathioprineAug 19, 2026Price upNADAC $2.86529 → $3.03387 per unit (+5.88%)
- AzathioprineAug 19, 2026Price upNADAC $7.56812 → $7.64868 per unit (+1.06%)
Same drug class
Other molecules FDA puts in Purine Antimetabolite, with whether each is in shortage right now. Same class is not the same drug — substitution is a clinical decision, and this is a supply picture, not a recommendation.
Common questions
- Is Azathioprine in shortage right now?
- No. FDA does not currently list Azathioprine in shortage. This page is rebuilt every morning from FDA's shortage database, so a new posting appears here the day it is published.
- Who makes Azathioprine?
- 28 companies have marketed Azathioprine in the last 30 days, according to the FDA NDC Directory. Every manufacturer and package is listed on this page.
- What does Azathioprine cost?
- The typical pharmacy pays about $0.1249 per unit, based on the most recent CMS NADAC survey of actual acquisition costs. That is what the pharmacy pays for the drug itself — not the cash price, and not what an insurer is billed.
All marketed products
Expand a strength to see its dosage forms, then package sizes, then each manufacturer and NDC. Click an NDC for its full detail page.