Last Updated: September 28, 2026

RELEXXII Drug Patent Profile

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

Relexxii is a drug marketed by Osmotica Pharm Us and is included in one NDA. There are five patents protecting this drug.

The generic ingredient in RELEXXII is methylphenidate hydrochloride. Forty-one suppliers are listed for this compound. Additional details are available on the methylphenidate hydrochloride profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Relexxii

A generic version of RELEXXII was approved as methylphenidate hydrochloride by SPECGX LLC on November 27^th, 1998.

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Summary for RELEXXII

US Patents:	5
Applicants:	1
NDAs:	1

US Patents and Regulatory Information for RELEXXII

RELEXXII is protected by five US patents.

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Osmotica Pharm Us	RELEXXII	methylphenidate hydrochloride	TABLET, EXTENDED RELEASE;ORAL	216117-007	Jun 23, 2022		RX	Yes	Yes	10,265,308	⤷ Start Trial	Y			⤷ Start Trial
Osmotica Pharm Us	RELEXXII	methylphenidate hydrochloride	TABLET, EXTENDED RELEASE;ORAL	216117-006	Jun 23, 2022		RX	Yes	No	9,855,258	⤷ Start Trial	Y			⤷ Start Trial
Osmotica Pharm Us	RELEXXII	methylphenidate hydrochloride	TABLET, EXTENDED RELEASE;ORAL	216117-007	Jun 23, 2022		RX	Yes	Yes	9,855,258	⤷ 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 RELEXXII

See the table below for patents covering RELEXXII around the world.

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Country	Patent Number	Title	Estimated Expiration
Argentina	109157		⤷ Start Trial
Canada	2992767		⤷ Start Trial
Chile	2017001919		⤷ 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.