Amantadine Hydrochloride Global Patent Coverage & Expiry Overview

Track protection status across key markets to assess launch feasibility.

Start your free 7-Day Trial! Book a demo to explore our global patent data.

It is formulated by 18 pharmaceutical companies such as ZYDUS PHARMS, INVAGEN PHARMS, WATSON LABS INC and others. It is marketed under 3 brand names, including AMANTADINE HYDROCHLORIDE, GOCOVRI, OSMOLEX ER. Available in 8 different strengths, such as 100MG, EQ 137MG BASE, EQ 68.5MG BASE and others, and administered through 5 routes including CAPSULE;ORAL, TABLET;ORAL, CAPSULE, EXTENDED RELEASE;ORAL and others.

Strategic Dashboard

info

insightsStrategic Insights

Sourcing & Feasibility

check_circle API availability: autorenew Loading API feasibility...

groups Licensing: 18 potential partners

calendar_todayUS Launch window: autorenew Loading launch window...

timeline Key Patent Barrier & Expiry Timeline

autorenew Loading patent barriers...

factoryGeneric Manufacturer Snapshot

autorenew Loading manufacturers...

gavelRisk & Opportunity Summary

dangerous Risk: autorenew Loading risk analysis...
watch_later Watch: autorenew Loading watch analysis...
rocket_launch Opportunity: autorenew Loading opportunity analysis...
flag
gavel
calendar_today
calendar_today

Access Global Patent Data

Stay ahead with worldwide patent expiry and latest updates.

✓ Comprehensive global patent expiry timelines
✓ Full patent family details and status updates
Unlock Global Patents

Orange Book Drug Approval Timeline

FDA approval history for this ingredient

NDA (New Drug Application) ANDA (Generic Application)

Access Global Exclusivity and Patent Expiry Extensions

Stay ahead with worldwide patent expiry insights, exclusivity data, and latest updates.

✓ Comprehensive global patent expiry timelines
✓ Full patent family details and status updates
✓ Latest exclusivity data and extensions
Unlock Global Access

US Orange Book Patents Expiration Timeline

Key expiration dates for US patents covering this ingredient

View Global Patents Expiration Timeline

Stay ahead with worldwide patent expiry insights, market data, and research updates.

✓ Comprehensive global patent expiry timelines
✓ Full patent family details and status updates
Unlock Global Patent Timeline

Orange Book Drug Strengths

Latest drug strengths approved by FDA

Strength Route of Administration Companies Latest Approval Date

Orange Book Patents

Patents approved by the FDA for the ingredient

Patent Number Publication Date Legal Status Patent Expiry Date
{"application_id":"44331","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"5e2252671d5146299e1c","publication_number":"US8796337B2","cleaned_patent_number":"8796337","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2025-11-23","publication_date":"2014-08-05","legal_status":"Granted"} US8796337B2 05 Aug, 2014 Granted 23 Nov, 2025
{"application_id":"44338","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"OSMOLEX ER","family_id":"5e2252671d5146299e1c","publication_number":"US9072697B2","cleaned_patent_number":"9072697","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2025-11-23","publication_date":"2015-07-07","legal_status":"Patented case"} US9072697B2 07 Jul, 2015 Patented case 23 Nov, 2025
{"application_id":"44337","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"OSMOLEX ER","family_id":"5e2252671d5146299e1c","publication_number":"US8987333B2","cleaned_patent_number":"8987333","drug_product_flag":"Y","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2025-11-23","publication_date":"2015-03-24","legal_status":"Granted"} US8987333B2 Formulation 24 Mar, 2015 Granted 23 Nov, 2025
{"application_id":"44336","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"5e2252671d5146299e1c","publication_number":"US8895618B1","cleaned_patent_number":"8895618","drug_product_flag":"Y","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2025-11-23","publication_date":"2014-11-25","legal_status":"Patented case"} US8895618B2 Formulation 25 Nov, 2014 Patented case 23 Nov, 2025
{"application_id":"44335","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"5e2252671d5146299e1c","publication_number":"US8895617B1","cleaned_patent_number":"8895617","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2025-11-23","publication_date":"2014-11-25","legal_status":"Granted"} US8895617B2 25 Nov, 2014 Granted 23 Nov, 2025
{"application_id":"44334","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"5e2252671d5146299e1c","publication_number":"US8895616B1","cleaned_patent_number":"8895616","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2025-11-23","publication_date":"2014-11-25","legal_status":"Granted"} US8895616B2 25 Nov, 2014 Granted 23 Nov, 2025
{"application_id":"44326","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"5e2252671d5146299e1c","publication_number":"US8895615B1","cleaned_patent_number":"8895615","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2025-11-23","publication_date":"2014-11-25","legal_status":"Granted"} US8895615B2 25 Nov, 2014 Granted 23 Nov, 2025
{"application_id":"44333","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"5e2252671d5146299e1c","publication_number":"US8895614B2","cleaned_patent_number":"8895614","drug_product_flag":"Y","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2025-11-23","publication_date":"2014-11-25","legal_status":"Granted"} US8895614B2 Formulation 25 Nov, 2014 Granted 23 Nov, 2025
{"application_id":"44413","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"5e2252671d5146299e1c","publication_number":"US8889740B1","cleaned_patent_number":"8889740","drug_product_flag":"Y","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2025-11-23","publication_date":"2014-11-18","legal_status":"Granted"} US8889740B2 Formulation 18 Nov, 2014 Granted 23 Nov, 2025
{"application_id":"87014","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"OSMOLEX ER","family_id":"61f91b59c29c432e9cc7","publication_number":"US8574626B2","cleaned_patent_number":"8574626","drug_product_flag":"Y","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2025-11-28","publication_date":"2013-11-05","legal_status":"Granted"} US8574626B2 Formulation 05 Nov, 2013 Granted 28 Nov, 2025
{"application_id":"44330","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"5e2252671d5146299e1c","publication_number":"US8389578B2","cleaned_patent_number":"8389578","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2028-01-22","publication_date":"2013-03-05","legal_status":"Granted"} US8389578B2 05 Mar, 2013 Granted 22 Jan, 2028
{"application_id":"87024","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"OSMOLEX ER","family_id":"61f91b59c29c432e9cc7","publication_number":"US8252331B2","cleaned_patent_number":"8252331","drug_product_flag":"Y","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2030-03-13","publication_date":"2012-08-28","legal_status":"Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362"} US8252331B2 Formulation 28 Aug, 2012 Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 13 Mar, 2030
{"application_id":"44373","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"aac1d8d538794487afcc","publication_number":"US9877933B2","cleaned_patent_number":"9877933","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2030-12-02","publication_date":"2018-01-30","legal_status":"Granted"} US9877933B2 30 Jan, 2018 Granted 02 Dec, 2030
{"application_id":"44374","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"aac1d8d538794487afcc","publication_number":"US11197835B2","cleaned_patent_number":"11197835","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2030-12-02","publication_date":"2021-12-14","legal_status":"Granted"} US11197835B2 14 Dec, 2021 Granted 02 Dec, 2030
{"application_id":"44355","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"aac1d8d538794487afcc","publication_number":"US8741343B2","cleaned_patent_number":"8741343","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2030-12-02","publication_date":"2014-06-03","legal_status":"Granted"} US8741343B2 03 Jun, 2014 Granted 02 Dec, 2030
{"application_id":"44370","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"aac1d8d538794487afcc","publication_number":"US9867791B2","cleaned_patent_number":"9867791","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2030-12-02","publication_date":"2018-01-16","legal_status":"Granted"} US9867791B2 16 Jan, 2018 Granted 02 Dec, 2030
{"application_id":"44371","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"aac1d8d538794487afcc","publication_number":"US9867792B2","cleaned_patent_number":"9867792","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2030-12-02","publication_date":"2018-01-16","legal_status":"Granted"} US9867792B2 16 Jan, 2018 Granted 02 Dec, 2030
{"application_id":"44372","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"aac1d8d538794487afcc","publication_number":"US9867793B2","cleaned_patent_number":"9867793","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2030-12-02","publication_date":"2018-01-16","legal_status":"Granted"} US9867793B2 16 Jan, 2018 Granted 02 Dec, 2030
{"application_id":"44397","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"763a5e456cf541dbb4e8","publication_number":"US11903908B2","cleaned_patent_number":"11903908","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2034-06-17","publication_date":"2024-02-20","legal_status":"Granted"} US11903908B2 20 Feb, 2024 Granted 17 Jun, 2034
{"application_id":"44396","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"763a5e456cf541dbb4e8","publication_number":"US10646456B2","cleaned_patent_number":"10646456","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2034-06-17","publication_date":"2020-05-12","legal_status":"Granted"} US10646456B2 12 May, 2020 Granted 17 Jun, 2034
{"application_id":"44395","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"763a5e456cf541dbb4e8","publication_number":"US10154971B2","cleaned_patent_number":"10154971","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2034-12-04","publication_date":"2018-12-18","legal_status":"Granted"} US10154971B2 18 Dec, 2018 Granted 04 Dec, 2034
{"application_id":"87010","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"OSMOLEX ER","family_id":"36989ca6635b4702b531","publication_number":"US10500171B2","cleaned_patent_number":"10500171","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2038-02-15","publication_date":"2019-12-10","legal_status":"Granted"} US10500171B2 10 Dec, 2019 Granted 15 Feb, 2038
{"application_id":"87009","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"OSMOLEX ER","family_id":"36989ca6635b4702b531","publication_number":"US10213394B1","cleaned_patent_number":"10213394","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2038-02-15","publication_date":"2019-02-26","legal_status":"Granted"} US10213394B2 26 Feb, 2019 Granted 15 Feb, 2038
{"application_id":"87003","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"OSMOLEX ER","family_id":"c611fcd7db584eb28280","publication_number":"US10213393B1","cleaned_patent_number":"10213393","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2038-02-15","publication_date":"2019-02-26","legal_status":"Granted"} US10213393B2 26 Feb, 2019 Granted 15 Feb, 2038
{"application_id":"87004","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"OSMOLEX ER","family_id":"c611fcd7db584eb28280","publication_number":"US10500170B2","cleaned_patent_number":"10500170","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2038-02-15","publication_date":"2019-12-10","legal_status":"Granted"} US10500170B2 10 Dec, 2019 Granted 15 Feb, 2038
{"application_id":"87005","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"OSMOLEX ER","family_id":"c611fcd7db584eb28280","publication_number":"US10512617B2","cleaned_patent_number":"10512617","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2038-02-15","publication_date":"2019-12-24","legal_status":"Granted"} US10512617B2 24 Dec, 2019 Granted 15 Feb, 2038
{"application_id":"87011","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"OSMOLEX ER","family_id":"36989ca6635b4702b531","publication_number":"US10500172B2","cleaned_patent_number":"10500172","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2038-02-15","publication_date":"2019-12-10","legal_status":"Granted"} US10500172B2 10 Dec, 2019 Granted 15 Feb, 2038
{"application_id":"87013","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"OSMOLEX ER","family_id":"36989ca6635b4702b531","publication_number":"US11890261B2","cleaned_patent_number":"11890261","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2038-02-15","publication_date":"2024-02-06","legal_status":"Granted"} US11890261B2 06 Feb, 2024 Granted 15 Feb, 2038
{"application_id":"44401","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"f3d311f48fc647c8af29","publication_number":"US11077073B2","cleaned_patent_number":"11077073","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2038-08-23","publication_date":"2021-08-03","legal_status":"Granted"} US11077073B2 03 Aug, 2021 Granted 23 Aug, 2038
{"application_id":"44409","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"f3d311f48fc647c8af29","publication_number":"US11065213B2","cleaned_patent_number":"11065213","drug_product_flag":"Y","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2038-08-23","publication_date":"2021-07-20","legal_status":"Granted"} US11065213B2 Formulation 20 Jul, 2021 Granted 23 Aug, 2038
{"application_id":"44410","ingredient":"AMANTADINE HYDROCHLORIDE","trade_name":"GOCOVRI","family_id":"f3d311f48fc647c8af29","publication_number":"US20220117914A1","cleaned_patent_number":"12233033","drug_product_flag":"-","drug_substance_flag":"-","use_codes":["-"],"definitions":["-"],"patent_expire_date_text":"2038-08-23","publication_date":"2022-04-21","legal_status":"Pending"} US12233033B2 21 Apr, 2022 Pending 23 Aug, 2038

Recent Clinical Trials

Latest clinical trials and research studies for this ingredient

NCT ID Title Status Phase Conditions Start Date Completion Date

API Suppliers/Manufacturer (Branded/Generic companies)

Manufacturing Locations

View Complete Supplier List

Unlock access to all suppliers of Amantadine Hydrochloride

✓ Access a comprehensive list of global suppliers
✓ Get information on each supplier
Unlock Suppliers

Note: Patent expirations and exclusivity timelines are dynamic and may shift based on litigation, regulatory extensions, and maintenance filings. Regular monitoring is advised.

GreyB © 2025 Elixir. All rights reserved.