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Data / Drug companies / Purine Antimetabolite

Purine Antimetabolite drugs: 3 drugs from 26 companies in the FDA NDC directory

Purine Antimetabolite is an FDA established pharmacologic class. The FDA National Drug Code Directory lists 42 products in this class from 26 companies, covering 3 drugs by generic name. The main marketing category is generic drugs (ANDA), and the newest product started marketing on September 10, 2026.

SpecStream is the live web data engine for teams and agents. It reads the National Drug Code Directory that FDA publishes, and this page is that reading. Ask for the companies that make a drug, a class or a dosage form, with their headquarters, website and size added from the web, and new listings and discontinued products arrive in your sheet, CRM, Slack or agent as FDA posts them.

  • 26Companies
  • 42Products
  • 3Drugs by generic name

Drugs in the Purine Antimetabolite class

Ranked by number of companies that list the drug.

DrugProducts hereCompanies listing it
Azathioprine3319
Cladribine87
Azathioprine sodium11

Companies with the most products in this class

CompanyProductsMain dosage formsMain marketing categoryNewest product started
Ascend Laboratories, LLC4tabletGeneric drugs (ANDA)March 29, 2020
Zydus Pharmaceuticals USA Inc.4tabletGeneric drugs (ANDA)December 2, 2017
Amneal Pharmaceuticals NY LLC3tabletGeneric drugs (ANDA)November 8, 2021
Zydus Lifesciences Limited3tabletGeneric drugs (ANDA)December 2, 2017
AvKARE2tabletGeneric drugs (ANDA)April 13, 2023
Hikma Pharmaceuticals USA Inc.2injection; injection, powder, lyophilized, for solutionGeneric drugs (ANDA)February 28, 2000
Hisun Pharmaceuticals USA, Inc.2injection, solutionGeneric drugs (ANDA)May 18, 2020
NuCare Pharmaceuticals,Inc.2tabletGeneric drugs (ANDA)March 29, 2020
Oceanside Pharmaceuticals2tabletGeneric drugs (ANDA)February 4, 2023
Salix Pharmaceuticals, Inc.2tabletGeneric drugs (ANDA)April 1, 2003
American Health Packaging1tabletGeneric drugs (ANDA)February 22, 2008
Amneal Pharmaceuticals NY LLC1tabletGeneric drugs (ANDA)February 2, 2015
Aphena Pharma Solutions - Tennessee, LLC1tabletGeneric drugs (ANDA)February 2, 2015
Apotex Corp.1tabletGeneric drugs (ANDA)November 25, 2025
Emd Serono, Inc.1tabletNew drug applications (NDA)April 1, 2019
Fresenius Kabi USA, LLC1injectionGeneric drugs (ANDA)December 1, 2004
Genvion Corporation1tabletGeneric drugs (ANDA)November 25, 2025
Glenmark Pharmaceuticals Inc., USA1tabletGeneric drugs (ANDA)August 1, 1999
Golden State Medical Supply, Inc.1tabletGeneric drugs (ANDA)June 7, 1999
Legacy Pharma USA Inc.1tabletNew drug applications (NDA)September 10, 2026
PD-Rx Pharmaceuticals, Inc.1tabletGeneric drugs (ANDA)February 2, 2015
Remedyrepack Inc.1tabletGeneric drugs (ANDA)September 30, 2022
Rising Pharma Holdings, Inc.1tabletGeneric drugs (ANDA)June 6, 2024
Sandoz Inc1tabletGeneric drugs (ANDA)April 29, 2026
Sebela Pharmaceuticals Inc.1tabletNew drug applications (NDA)December 1, 2017
Zydus Lifesciences Limited1tabletGeneric drugs (ANDA)July 11, 2007

Dosage forms

Dosage formProductsShare
Tablet3788.1%
Injection24.8%
Injection, solution24.8%
Injection, powder, lyophilized, for solution12.4%

Updated November 6, 2026. Read from US Food and Drug Administration, National Drug Code Directory (openFDA). 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.