Last Updated: September 24, 2026

ADZENYS ER Drug Patent Profile


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Which patents cover Adzenys Er, and what generic alternatives are available?

Adzenys Er is a drug marketed by Neos Theraps Inc and is included in one NDA. There are three patents protecting this drug.

The generic ingredient in ADZENYS ER is amphetamine. There is one drug master file entry for this compound. Three suppliers are listed for this compound. Additional details are available on the amphetamine profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Adzenys Er

A generic version of ADZENYS ER was approved as amphetamine by ACTAVIS LABS FL INC on June 22nd, 2023.

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Recent Clinical Trials for ADZENYS ER

Identify potential brand extensions & 505(b)(2) entrants

SponsorPhase
Aytu BioPharma, Inc.PHASE4
Premier Research Group plcPHASE4
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)Phase 2

See all ADZENYS ER clinical trials

US Patents and Regulatory Information for ADZENYS ER

ADZENYS ER is protected by three US patents.

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Neos Theraps Inc ADZENYS ER amphetamine SUSPENSION, EXTENDED RELEASE;ORAL 204325-001 Sep 15, 2017 DISCN Yes No ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Neos Theraps Inc ADZENYS ER amphetamine SUSPENSION, EXTENDED RELEASE;ORAL 204325-001 Sep 15, 2017 DISCN Yes No ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Neos Theraps Inc ADZENYS ER amphetamine SUSPENSION, EXTENDED RELEASE;ORAL 204325-001 Sep 15, 2017 DISCN Yes No ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

International Patents for ADZENYS ER

When does loss-of-exclusivity occur for ADZENYS ER?

Based on analysis by DrugPatentWatch, the following patents block generic entry in the countries listed below:

European Patent Office

Patent: 26066
Patent: FORMES POSOLOGIQUES POUR ADMINISTRATION ORALE ET MÉTHODES DE TRAITEMENT LES UTILISANT (DOSAGE FORMS FOR ORAL ADMINISTRATION AND METHODS OF TREATMENT USING THE SAME)
Estimated Expiration: ⤷  Start Trial

Generics may enter earlier, or later, based on new patent filings, patent extensions, patent invalidation, early generic licensing, generic entry preferences, and other factors.

See the table below for additional patents covering ADZENYS ER around the world.

Country Patent Number Title Estimated Expiration
European Patent Office 2726066 ⤷  Start Trial
World Intellectual Property Organization (WIPO) 2013003622 ⤷  Start Trial
European Patent Office 2726066 FORMES POSOLOGIQUES POUR ADMINISTRATION ORALE ET MÉTHODES DE TRAITEMENT LES UTILISANT (DOSAGE FORMS FOR ORAL ADMINISTRATION AND METHODS OF TREATMENT USING THE SAME) ⤷  Start Trial
World Intellectual Property Organization (WIPO) 2013003622 ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.