Data / Drug companies / Azathioprine
Azathioprine: 19 companies and 33 products in the FDA NDC directory
Updated November 6, 2026. Source: US Food and Drug Administration, National Drug Code Directory (openFDA).
Azathioprine is listed in the FDA National Drug Code Directory by 19 companies, with 33 products in commercial distribution. 31 of the products (93.9%) are marketed under an abbreviated new drug application (ANDA), the generic route. The most common dosage forms are tablet, and the newest product started marketing on September 10, 2026.
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- Companies listing it
- 19
- Products
- 33
- Generic (ANDA) products
- 31 (93.9%)
- Application numbers
- 6
- Routes
- Oral
- Brand names
- Imuran, Azasan
- openFDA record search
- api.fda.gov
Companies that list azathioprine
Ranked by number of products. Finished drugs in commercial distribution.
| Company | Products | Main dosage forms | Main marketing category | Newest product started |
|---|---|---|---|---|
| Ascend Laboratories, LLC | 4 | tablet | Generic drugs (ANDA) | March 29, 2020 |
| Zydus Pharmaceuticals USA Inc. | 4 | tablet | Generic drugs (ANDA) | December 2, 2017 |
| Amneal Pharmaceuticals NY LLC | 3 | tablet | Generic drugs (ANDA) | November 8, 2021 |
| Zydus Lifesciences Limited | 3 | tablet | Generic drugs (ANDA) | December 2, 2017 |
| AvKARE | 2 | tablet | Generic drugs (ANDA) | April 13, 2023 |
| NuCare Pharmaceuticals,Inc. | 2 | tablet | Generic drugs (ANDA) | March 29, 2020 |
| Oceanside Pharmaceuticals | 2 | tablet | Generic drugs (ANDA) | February 4, 2023 |
| Salix Pharmaceuticals, Inc. | 2 | tablet | Generic drugs (ANDA) | April 1, 2003 |
| American Health Packaging | 1 | tablet | Generic drugs (ANDA) | February 22, 2008 |
| Amneal Pharmaceuticals NY LLC | 1 | tablet | Generic drugs (ANDA) | February 2, 2015 |
| Aphena Pharma Solutions - Tennessee, LLC | 1 | tablet | Generic drugs (ANDA) | February 2, 2015 |
| Glenmark Pharmaceuticals Inc., USA | 1 | tablet | Generic drugs (ANDA) | August 1, 1999 |
| Golden State Medical Supply, Inc. | 1 | tablet | Generic drugs (ANDA) | June 7, 1999 |
| Legacy Pharma USA Inc. | 1 | tablet | New drug applications (NDA) | September 10, 2026 |
| PD-Rx Pharmaceuticals, Inc. | 1 | tablet | Generic drugs (ANDA) | February 2, 2015 |
| Remedyrepack Inc. | 1 | tablet | Generic drugs (ANDA) | September 30, 2022 |
| Rising Pharma Holdings, Inc. | 1 | tablet | Generic drugs (ANDA) | June 6, 2024 |
| Sebela Pharmaceuticals Inc. | 1 | tablet | New drug applications (NDA) | December 1, 2017 |
| Zydus Lifesciences Limited | 1 | tablet | Generic drugs (ANDA) | July 11, 2007 |
Dosage forms
| Dosage form | Products | Share |
|---|---|---|
| Tablet | 33 | 100% |
Marketing categories
| Marketing category | Products | Share |
|---|---|---|
| Generic drugs (ANDA) | 31 | 93.9% |
| New drug applications (NDA) | 2 | 6.1% |
Pharmacologic classes
| Class | Products |
|---|---|
| Purine Antimetabolite | 33 |
CC0 1.0 public domain dedication (openFDA). Counts are products in the FDA National Drug Code Directory on November 6, 2026: 138,262 products in commercial distribution, meaning without a marketing end date in the past. A company is a labeler code; one company can hold several codes, and the directory carries no address. Inclusion in the directory is not FDA approval, and the marketing category says under which kind of application or rule a product is sold. This page uses openFDA data and is not endorsed or certified by FDA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.