Data / Drug companies / Aromatase Inhibitor
Aromatase Inhibitor drugs: 5 drugs from 41 companies in the FDA NDC directory
Aromatase Inhibitor is an FDA established pharmacologic class. The FDA National Drug Code Directory lists 77 products in this class from 41 companies, covering 5 drugs by generic name. The main marketing category is generic drugs (ANDA), and the newest product started marketing on October 31, 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.
- 41Companies
- 77Products
- 5Drugs by generic name
Drugs in the Aromatase Inhibitor class
Ranked by number of companies that list the drug.
| Drug | Products here | Companies listing it |
|---|---|---|
| Anastrozole | 34 | 22 |
| Letrozole | 19 | 17 |
| Exemestane | 12 | 12 |
| Anastrozole tablets | 7 | 6 |
| Letrozole tablets | 5 | 5 |
Companies with the most products in this class
| Company | Products | Main dosage forms | Main marketing category | Newest product started |
|---|---|---|---|---|
| NuCare Pharmaceuticals,Inc. | 11 | tablet; tablet, film coated | Generic drugs (ANDA) | February 28, 2019 |
| A-S Medication Solutions | 4 | tablet; tablet, film coated | Generic drugs (ANDA) | June 4, 2011 |
| Bryant Ranch Prepack | 4 | tablet; tablet, film coated | Generic drugs (ANDA) | June 1, 2023 |
| Aurobindo Pharma Limited | 3 | tablet, film coated | Generic drugs (ANDA) | May 20, 2022 |
| AvKARE | 3 | tablet, film coated; tablet | Generic drugs (ANDA) | February 6, 2023 |
| Breckenridge Pharmaceutical, Inc. | 3 | tablet; tablet, film coated | Generic drugs (ANDA) | December 19, 2019 |
| Bryant Ranch Prepack | 3 | tablet, film coated; tablet | Generic drugs (ANDA) | December 19, 2019 |
| PD-Rx Pharmaceuticals, Inc. | 3 | tablet; tablet, coated | Generic drugs (ANDA) | June 22, 2026 |
| Accord Healthcare Inc. | 2 | tablet, film coated; tablet | Generic drugs (ANDA) | June 2, 2011 |
| AvPAK | 2 | tablet | Generic drugs (ANDA) | October 11, 2019 |
| Chartwell RX, LLC | 2 | tablet; tablet, film coated | Generic drugs (ANDA) | May 9, 2019 |
| Direct_Rx | 2 | tablet | Generic drugs (ANDA) | August 3, 2026 |
| Heritage Pharmaceuticals Inc. D/B/A Avet Pharmaceuticals Inc. | 2 | tablet; tablet, film coated | Generic drugs (ANDA) | June 1, 2023 |
| Natco Pharma Limited | 2 | tablet | Generic drugs (ANDA) | June 3, 2011 |
| Teva Pharmaceuticals USA, Inc. | 2 | tablet, film coated | Generic drugs (ANDA) | June 3, 2011 |
| Upsher-Smith Laboratories, LLC | 2 | tablet, film coated; tablet | Generic drugs (ANDA) | March 21, 2025 |
| Yiling Pharmaceutical, Inc. | 2 | tablet; tablet, film coated | Generic drugs (ANDA) | September 5, 2019 |
| Zydus Pharmaceuticals USA Inc. | 2 | tablet, coated; tablet | Generic drugs (ANDA) | October 8, 2018 |
| American Health Packaging | 1 | tablet, coated | Generic drugs (ANDA) | February 3, 2016 |
| Ani Pharmaceuticals, Inc. | 1 | tablet | New drug applications (NDA) | June 26, 2018 |
| Asclemed USA Inc. | 1 | tablet | Generic drugs (ANDA) | February 28, 2019 |
| Asclemed USA, Inc. | 1 | tablet | Generic drugs (ANDA) | June 22, 2010 |
| Atlantic Biologicals Corp. | 1 | tablet, film coated | Generic drugs (ANDA) | January 13, 2020 |
| BluePoint Laboratories | 1 | tablet, coated | Generic drugs (ANDA) | January 1, 2014 |
| Carnegie Pharmaceuticals LLC | 1 | tablet, film coated | Generic drugs (ANDA) | June 30, 2026 |
| Cipla USA Inc. | 1 | tablet | Generic drugs (ANDA) | April 27, 2018 |
| Dr. Reddy's Laboratories Limited | 1 | tablet, film coated | Generic drugs (ANDA) | June 3, 2011 |
| Florida Pharmaceutical Products, LLC | 1 | tablet, film coated | Generic drugs (ANDA) | January 15, 2021 |
| Golden State Medical Supply, Inc. | 1 | tablet, film coated | Generic drugs (ANDA) | November 14, 2018 |
| Mylan Pharmaceuticals Inc. | 1 | tablet, sugar coated | Authorized generics (NDA) | April 1, 2011 |
| NorthStar RxLLC | 1 | tablet, film coated | Generic drugs (ANDA) | January 1, 2025 |
| Novartis Pharmaceuticals Corporation | 1 | tablet, film coated | New drug applications (NDA) | July 31, 1997 |
| Opko Pharmaceuticals, LLC | 1 | tablet, coated | Generic drugs (ANDA) | October 31, 2026 |
| PD-Rx Pharmaceuticals, Inc. | 1 | tablet | Generic drugs (ANDA) | June 28, 2010 |
| Pharmacia & Upjohn Company LLC | 1 | tablet | New drug applications (NDA) | October 21, 1999 |
| Proficient Rx LP | 1 | tablet, film coated | Generic drugs (ANDA) | June 3, 2011 |
| Proficient Rx LP | 1 | tablet | Generic drugs (ANDA) | June 28, 2010 |
| Proficient Rx LP | 1 | tablet | Generic drugs (ANDA) | February 28, 2019 |
| Upsher-Smith Laboratories, LLC | 1 | tablet | Generic drugs (ANDA) | July 27, 2017 |
| Zydus Lifesciences Limited | 1 | tablet | Generic drugs (ANDA) | October 8, 2018 |
| Zydus Lifesciences Limited | 1 | tablet, coated | Generic drugs (ANDA) | June 27, 2010 |
Dosage forms
| Dosage form | Products | Share |
|---|---|---|
| Tablet | 41 | 53.2% |
| Tablet, film coated | 28 | 36.4% |
| Tablet, coated | 7 | 9.1% |
| Tablet, sugar coated | 1 | 1.3% |
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.