Last Updated: June 11, 2026

AMANTADINE Drug Patent Profile


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When do Amantadine patents expire, and what generic alternatives are available?

Amantadine is a drug marketed by Zydus, Actavis Elizabeth, Alembic, Bionpharma, Chartwell Molecular, Heritage Pharma, Humanwell Puracap, Invagen Pharms, Onesource Specialty, Rising, Rubicon Research, Sandoz, Strides Pharma, Upsher Smith Labs, Watson Labs, Watson Labs Inc, Zydus Pharms, Adaptis, Aurobindo Pharma Usa, Chartwell Rx, G And W Labs Inc, Ph Health, Pharm Assoc, Pharmobedient, Pom Pharma, Teva Pharms, Jubilant Generics, and Zhejiang Jutai Pharm. and is included in thirty-six NDAs.

The generic ingredient in AMANTADINE is amantadine hydrochloride. There are seven drug master file entries for this compound. Thirty-seven suppliers are listed for this compound. Additional details are available on the amantadine hydrochloride profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Amantadine

A generic version of AMANTADINE was approved as amantadine hydrochloride by UPSHER SMITH LABS on August 5th, 1986.

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Summary for AMANTADINE
US Patents:0
Applicants:28
NDAs:36
Drug Prices: Drug price information for AMANTADINE
DailyMed Link:AMANTADINE at DailyMed

US Patents and Regulatory Information for AMANTADINE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Pom Pharma AMANTADINE HYDROCHLORIDE amantadine hydrochloride TABLET;ORAL 210215-001 Mar 10, 2020 AB RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Adaptis AMANTADINE HYDROCHLORIDE amantadine hydrochloride TABLET;ORAL 212407-001 May 27, 2022 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Strides Pharma AMANTADINE HYDROCHLORIDE amantadine hydrochloride TABLET;ORAL 209035-001 Jun 9, 2017 AB RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Alembic AMANTADINE HYDROCHLORIDE amantadine hydrochloride TABLET;ORAL 214284-001 Oct 15, 2020 AB RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity 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.