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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.

DrugProducts hereCompanies listing it
Anastrozole3422
Letrozole1917
Exemestane1212
Anastrozole tablets76
Letrozole tablets55

Companies with the most products in this class

CompanyProductsMain dosage formsMain marketing categoryNewest product started
NuCare Pharmaceuticals,Inc.11tablet; tablet, film coatedGeneric drugs (ANDA)February 28, 2019
A-S Medication Solutions4tablet; tablet, film coatedGeneric drugs (ANDA)June 4, 2011
Bryant Ranch Prepack4tablet; tablet, film coatedGeneric drugs (ANDA)June 1, 2023
Aurobindo Pharma Limited3tablet, film coatedGeneric drugs (ANDA)May 20, 2022
AvKARE3tablet, film coated; tabletGeneric drugs (ANDA)February 6, 2023
Breckenridge Pharmaceutical, Inc.3tablet; tablet, film coatedGeneric drugs (ANDA)December 19, 2019
Bryant Ranch Prepack3tablet, film coated; tabletGeneric drugs (ANDA)December 19, 2019
PD-Rx Pharmaceuticals, Inc.3tablet; tablet, coatedGeneric drugs (ANDA)June 22, 2026
Accord Healthcare Inc.2tablet, film coated; tabletGeneric drugs (ANDA)June 2, 2011
AvPAK2tabletGeneric drugs (ANDA)October 11, 2019
Chartwell RX, LLC2tablet; tablet, film coatedGeneric drugs (ANDA)May 9, 2019
Direct_Rx2tabletGeneric drugs (ANDA)August 3, 2026
Heritage Pharmaceuticals Inc. D/B/A Avet Pharmaceuticals Inc.2tablet; tablet, film coatedGeneric drugs (ANDA)June 1, 2023
Natco Pharma Limited2tabletGeneric drugs (ANDA)June 3, 2011
Teva Pharmaceuticals USA, Inc.2tablet, film coatedGeneric drugs (ANDA)June 3, 2011
Upsher-Smith Laboratories, LLC2tablet, film coated; tabletGeneric drugs (ANDA)March 21, 2025
Yiling Pharmaceutical, Inc.2tablet; tablet, film coatedGeneric drugs (ANDA)September 5, 2019
Zydus Pharmaceuticals USA Inc.2tablet, coated; tabletGeneric drugs (ANDA)October 8, 2018
American Health Packaging1tablet, coatedGeneric drugs (ANDA)February 3, 2016
Ani Pharmaceuticals, Inc.1tabletNew drug applications (NDA)June 26, 2018
Asclemed USA Inc.1tabletGeneric drugs (ANDA)February 28, 2019
Asclemed USA, Inc.1tabletGeneric drugs (ANDA)June 22, 2010
Atlantic Biologicals Corp.1tablet, film coatedGeneric drugs (ANDA)January 13, 2020
BluePoint Laboratories1tablet, coatedGeneric drugs (ANDA)January 1, 2014
Carnegie Pharmaceuticals LLC1tablet, film coatedGeneric drugs (ANDA)June 30, 2026
Cipla USA Inc.1tabletGeneric drugs (ANDA)April 27, 2018
Dr. Reddy's Laboratories Limited1tablet, film coatedGeneric drugs (ANDA)June 3, 2011
Florida Pharmaceutical Products, LLC1tablet, film coatedGeneric drugs (ANDA)January 15, 2021
Golden State Medical Supply, Inc.1tablet, film coatedGeneric drugs (ANDA)November 14, 2018
Mylan Pharmaceuticals Inc.1tablet, sugar coatedAuthorized generics (NDA)April 1, 2011
NorthStar RxLLC1tablet, film coatedGeneric drugs (ANDA)January 1, 2025
Novartis Pharmaceuticals Corporation1tablet, film coatedNew drug applications (NDA)July 31, 1997
Opko Pharmaceuticals, LLC1tablet, coatedGeneric drugs (ANDA)October 31, 2026
PD-Rx Pharmaceuticals, Inc.1tabletGeneric drugs (ANDA)June 28, 2010
Pharmacia & Upjohn Company LLC1tabletNew drug applications (NDA)October 21, 1999
Proficient Rx LP1tablet, film coatedGeneric drugs (ANDA)June 3, 2011
Proficient Rx LP1tabletGeneric drugs (ANDA)June 28, 2010
Proficient Rx LP1tabletGeneric drugs (ANDA)February 28, 2019
Upsher-Smith Laboratories, LLC1tabletGeneric drugs (ANDA)July 27, 2017
Zydus Lifesciences Limited1tabletGeneric drugs (ANDA)October 8, 2018
Zydus Lifesciences Limited1tablet, coatedGeneric drugs (ANDA)June 27, 2010

Dosage forms

Dosage formProductsShare
Tablet4153.2%
Tablet, film coated2836.4%
Tablet, coated79.1%
Tablet, sugar coated11.3%

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.