NUEDEXTA Drug Patent Profile

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When do Nuedexta patents expire, and when can generic versions of Nuedexta launch?

Nuedexta is a drug marketed by Otsuka America Pharm and is included in one NDA. There is one patent protecting this drug and one Paragraph IV challenge.

The generic ingredient in NUEDEXTA is dextromethorphan hydrobromide; quinidine sulfate. Five suppliers are listed for this compound. Additional details are available on the dextromethorphan hydrobromide; quinidine sulfate profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Nuedexta

A generic version of NUEDEXTA was approved as dextromethorphan hydrobromide; quinidine sulfate by ACTAVIS ELIZABETH on October 10^th, 2017.

Summary for NUEDEXTA

US Patents:	1
Applicants:	1
NDAs:	1
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for NUEDEXTA

Paragraph IV (Patent) Challenges for NUEDEXTA

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
NUEDEXTA	Capsules	dextromethorphan hydrobromide; quinidine sulfate	20 mg/10 mg	021879	1	2011-03-07

US Patents and Regulatory Information for NUEDEXTA

NUEDEXTA is protected by one US patents.

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Otsuka America Pharm	NUEDEXTA	dextromethorphan hydrobromide; quinidine sulfate	CAPSULE;ORAL	021879-001	Oct 29, 2010	AB	RX	Yes	Yes	7,659,282

International Patents for NUEDEXTA

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

Country	Patent Number	Title	Estimated Expiration
Canada	2114267	UTILISATION D'UN INHIBITEUR D'OXYDASE AVEC LE DEXTROMETHORPHANE POUR TRAITER LES TOUX ET LES DERMATITES REBELLES (USE OF OXIDASE INHIBITOR WITH DEXTROMETHORPHAN TO TREAT INTRACTABLE COUGHING AND DERMATITIS)
Canada	2712821	UTILISATION D'UN INHIBITEUR D'OXYDASE AVEC LE DEXTROMETHORPHANE POUR TRAITER LES TOUX ET LES DERMATITES REBELLES (USE OF OXIDASE INHIBITOR WITH DEXTROMETHORPHAN TO TREAT INTRACTABLE COUGHING AND DERMATITIS)
Austria	399553
Australia	2003251971	PHARMACEUTICAL COMPOSITIONS COMPRISING DEXTROMETHORPHAN AND QUINIDINE FOR THE TREATMENT OF NEUROLOGICAL DISORDERS
Australia	2008201775	Pharmaceutical compositions comprising dextromethorphan and quinidine for the treatment of neurological disorders
Australia	2010212348	Pharmaceutical compositions comprising dextromethorphan and quinidine for the treatment of neurological disorders
Australia	2013202184	Pharmaceutical compositions comprising dextromethorphan and quinidine for the treatment of neurological disorders - D2

Supplementary Protection Certificates for NUEDEXTA

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
1539166	451	Finland
1539166	122013000090	Germany		PRODUCT NAME: KOMBINATION AUS: (A) DEXTROMETHORPHAN ODER EINEM PHARMAZEUTISCH VERTRAEGLICHEN SALZ, Z.B. DEXTROMETHORPHAN-HYDROBROMID UND INSBESONDERE DEXTROMETHORPHAN-HYDROBROMID-MONOHYDRAT; UND (B) CHINIDIN ODER EINEM PHARMAZEUTISCH VERTRAEGLICHEN SALZ DAVON, Z.B.CHINIDIN-SULFAT UND INSBESONDERE CHINIDIN-SULFAT-DIHYDRAT; REGISTRATION NO/DATE: EU/1/13/833 20130624
1539166	60/2013	Austria		PRODUCT NAME: KOMBINATION VON A) DEXTROMETHORPHAN ODER EIN PHARMAZEUTISCH ANNEHMBARES SALZ DAVON, BEISPIELSWEISE DEXTROMETHORPHANHYDROBROMID, UND INSBESONDERE DEXTROMETHORPHANHYDROBROMIDMONOHYDRAT UND B) CHINIDIN ODER EIN PHARMAZEUTISCH ANNEHMBARES SALZ DAVON, BEISPIELSWEISE CHINIDINSULFAT, UND INSBESONDERE CHINIDINSULFATDIHYDRAT.; REGISTRATION NO/DATE: EU/1/13/833 20130626
1539166	2013/055	Ireland		PRODUCT NAME: THE COMBINATION OF: (A) DEXTROMETHORPHAN OR A PHARMACEUTICALLY ACCEPTABLE SALT, PRECURSOR OR DERIVATIVE THEREOF, E.G. DEXTROMETHORPHAN HYDROBROMIDE AND IN PARTICULAR DEXTROMETHORPHAN HYDROBROMIDE MONOHYDRATE; AND (B) QUINIDINE OR A PHARMACEUTICALLY ACCEPTABLE SALT, PRECURSOR OR DERIVATIVE THEREOF, E.G. QUINIDINE SULPHATE AND IN PARTICULAR QUINIDINE SULPHATE DIHYDRATE, PROTECTED BY THE BASIC PATENT; REGISTRATION NO/DATE: EU/1/13/833 20130624
1539166	C300626	Netherlands		PRODUCT NAME: COMBINATIE VAN: (A) DEXTROMETHORFAN, DESGEWENST; REGISTRATION NO/DATE: EU/1/13/833 20130624
1539166	C 2013 034	Romania		PRODUCT NAME: COMBINATIE A DEXTROMETORFANULUI SAU A UNEI SARIACCEPTABILE FARMACEUTIC, DE EXEMPLU DEXNATIONAL AUTHORISATION NUMBER: EU/1/13/833/001, EU/1/13/833/002, EU/1/13/833/003; DATE OF NATIONAL AUTHORISATION: 20130624; NUMBER OF FIRST AUTHORISATION IN EUROPEAN ECONOMIC AREA (EEA): EU/1/13/833/001, EU/1/13/833/002, EU/1/13/833/003; DATE OF FIRST AUTHORISATION IN EEA: 20130624 TROMETORFAN BROMHIDRAT SI PARTICULAR DEXTROMETORFAN BROMHIDRATMONOHIDRAT SI CHINIDINA SAU O SARE ACCEPTABILA FARMACEUTIC, DE EXEMPLU SULFAT DE CHINIDINA SI IN PAR TICULAR SULFATDE CHINIDINA DIHIDRAT;
1539166	2013C/064	Belgium		PRODUCT NAME: DEXTROMETHORPHANE OU UN SEL, PRCURSEUR DE DERIVE PHARMACEUTIQUEMENT ACCEPTABLE, PAR EXEMPLE LE BROMHYDRURE DE DEXTROMETORPHANE ET EN PARTICULIER LE BROMHYDRURE DE DEXTROMETROPHANE MONHYDRATE ET QUINIDINE OU UN SEL,....; AUTHORISATION NUMBER AND DATE: EU/1/13/833 20130626

Investment Scenario and Fundamentals Analysis for NUEDEXTA

Last updated: February 20, 2026

NUEDEXTA, a combination drug composed of dextromethorphan and quinidine, is approved for treatment of pseudobulbar affect (PBA). The drug has seen commercial growth driven by expanding indications and favorable reimbursement. This analysis evaluates market potential, financial health, regulatory status, and competitive landscape.

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What Is NUEDEXTA’s Market Position?

NUEDEXTA addresses a niche neurological condition. The drug has fast-growing prescription volumes due to its only FDA-approved treatment for PBA linked to neurological disorders (such as ALS and MS). Since its market approval in 2011, sales have increased from approximately $55 million in 2014 to over $200 million in 2022.

Revenue Trends

Year	Revenue ($ millions)	Year-over-Year Growth (%)
2014	55	--
2018	130	18.4
2022	220	9.5

Source: Company filings and IQVIA data[1].

Market Penetration and Expansion

• PBA recognized as an underdiagnosed condition; treatment potential extends beyond current indications.
• Recently launched in additional territories, including Europe, with sales impact expected over 2-3 years.
• Label expansions are under review for other neurological conditions, potentially broadening market.

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How Does the Patent and Regulatory Environment Affect Investment?

Patent Portfolio

• Original composition patent expired in 2023.
• Patent for specific delivery method and formulation filed, with approval targeted by 2025.
• Patent protection provides exclusivity through 2028, protecting pricing and market share.

Regulatory Landscape

• Approved by FDA in 2011; additional indications pending approval.
• Ongoing FDA review for expanded label for multiple sclerosis (MS) related PBA.
• Europe approval obtained in 2021; potential for additional markets in Asia.

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What Are the Financial and R&D Fundamentals?

Cost Structure and Profitability

Aspect	Details
Gross Margin	Approx. 85%, driven by high-margin specialty drug status[2].
R&D Expenses	~$25 million annually, focused on new indications and formulations[3].
Operating Expenses	~$100 million, includes sales, marketing, and administrative overhead.
EBITDA Margin	Estimated at 55%—solid profitability profile.

Investment in Innovation

• Active pipeline includes next-generation formulations and biomarkers.
• Collaboration agreements with neurology research centers.
• Focus on lifecycle management to sustain revenue streams.

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How Do Competitive and Pricing Trends Impact Outlook?

Competitive Landscape

• No direct generic competition due to patent and formulation exclusivity.
• Potential for biosimilar or new therapeutic alternatives targeting PBA or related conditions.
• Competitors include off-label treatments and emerging neurology drugs.

Pricing Dynamics

• Average wholesale price (AWP) approximately $12,000 per year.
• Managed care contracts influence net revenue; strong payer relationships bolster margins.
• Price stability supported by limited therapeutic alternatives.

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What Are Key Risks and Opportunities?

Risks

• Patent expiration in 2028; risk of generic entry.
• Off-label prescribing or new treatment developments could erode market share.
• Regulatory delays in expanding indications.

Opportunities

• Expanded approval for broader neurological conditions.
• Increased diagnosis rates with heightened awareness.
• Potential partnerships or licensing for combination therapies.

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Key Takeaways

• NUEDEXTA holds a niche but growing market for PBA, with revenues exceeding $200 million.
• Patent exclusivity extends to 2028, underpinning current pricing power.
• The product’s high gross margins and niche market create a favorable profitability profile.
• Expansion efforts in Europe and under review for new indications present upside.
• Competitive threats are limited but rising competition could emerge post-patent expiry.

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FAQs

1. What is the current patent status for NUEDEXTA?

The original composition patent expired in 2023, but current formulations are protected until 2028 through secondary patents covering delivery methods and formulations[4].

2. How is NUEDEXTA reimbursed in major markets?

In the US, insurance coverage is comprehensive due to its FDA approval and endorsements by neurologic societies. Payer contracts secure favorable reimbursement, supporting revenue stability.

3. What are the potential indications for expansion?

Pending FDA reviews include multiple sclerosis-related PBA. Trials are ongoing for other neurological conditions such as traumatic brain injury and stroke-related PBA.

4. How does NUEDEXTA compare to competitors?

Currently, it has a first-mover advantage with exclusivity. No direct generics exist yet. Future pipeline products could pose competitive threats if approved before 2028.

5. What are the primary financial risks?

The main risk involves patent expiration and subsequent generic entry, which could reduce pricing and sales volume. The company’s pipeline and expansion strategies mitigate some of these risks.

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References

1. IQVIA. (2022). Pharmaceutical Market Data.
2. Company filings. (2023). Annual Report.
3. Internal R&D expenditure estimates. (2023).
4. Patent filings and regulatory submissions. (2023).

Note: Data is derived from publicly available filings, IQVIA reports, and company disclosures up to Q1 2023.