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Last Updated: December 12, 2025

DEXTROMETHORPHAN POLISTIREX - Generic Drug Details


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What are the generic drug sources for dextromethorphan polistirex and what is the scope of freedom to operate?

Dextromethorphan polistirex is the generic ingredient in two branded drugs marketed by Rb Hlth, Amneal, and Tris Pharma Inc, and is included in three NDAs. Additional information is available in the individual branded drug profile pages.

There are four drug master file entries for dextromethorphan polistirex. Twenty-eight suppliers are listed for this compound.

Summary for DEXTROMETHORPHAN POLISTIREX
US Patents:0
Tradenames:2
Applicants:3
NDAs:3
Drug Master File Entries: 4
Finished Product Suppliers / Packagers: 28
Raw Ingredient (Bulk) Api Vendors: 30
Patent Applications: 2,575
What excipients (inactive ingredients) are in DEXTROMETHORPHAN POLISTIREX?DEXTROMETHORPHAN POLISTIREX excipients list
DailyMed Link:DEXTROMETHORPHAN POLISTIREX at DailyMed
Medical Subject Heading (MeSH) Categories for DEXTROMETHORPHAN POLISTIREX
Paragraph IV (Patent) Challenges for DEXTROMETHORPHAN POLISTIREX
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
DELSYM Extended-release Suspension dextromethorphan polistirex 30 mg/5 mL 018658 1 2009-01-12

US Patents and Regulatory Information for DEXTROMETHORPHAN POLISTIREX

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Amneal DEXTROMETHORPHAN POLISTIREX dextromethorphan polistirex SUSPENSION, EXTENDED RELEASE;ORAL 203133-001 Jul 28, 2017 OTC No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Tris Pharma Inc DEXTROMETHORPHAN POLISTIREX dextromethorphan polistirex SUSPENSION, EXTENDED RELEASE;ORAL 091135-001 May 25, 2012 OTC No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Rb Hlth DELSYM dextromethorphan polistirex SUSPENSION, EXTENDED RELEASE;ORAL 018658-001 Oct 8, 1982 OTC Yes Yes ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Expired US Patents for DEXTROMETHORPHAN POLISTIREX

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Rb Hlth DELSYM dextromethorphan polistirex SUSPENSION, EXTENDED RELEASE;ORAL 018658-001 Oct 8, 1982 ⤷  Get Started Free ⤷  Get Started Free
Rb Hlth DELSYM dextromethorphan polistirex SUSPENSION, EXTENDED RELEASE;ORAL 018658-001 Oct 8, 1982 ⤷  Get Started Free ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

Market Dynamics and Financial Trajectory for Dextromethorphan Polistirex

Last updated: July 28, 2025

Introduction

Dextromethorphan Polistirex (DXM Polistirex) stands as a sustained-release formulation of dextromethorphan, a prevalent antitussive agent utilized primarily for cough suppression. With rising demand for over-the-counter (OTC) cold and cough remedies, the product’s market trajectory is influenced by evolving consumer preferences, regulatory modifications, and innovative formulation strategies. This analysis delineates the market dynamics shaping DXM Polistirex's growth and projects its financial trajectory by examining key industry factors, competitive landscape, regulatory environment, and emerging trends.

Market Overview and Segmentation

Dextromethorphan Polistirex is a controlled-release variant of dextromethorphan hydrobromide, formulated for once-daily dosing. Its extended-release profile is designed for prolonged therapeutic effects with better patient compliance. The global cough and cold remedies market, estimated at approximately $7.5 billion in 2021, is projected to grow at a compounded annual growth rate (CAGR) of around 5% through 2027 [1].

Within this landscape, DXM Polistirex occupies a niche, primarily in OTC sectors, valued for its convenience and effectiveness. The key segments include:

  • OTC products for adult consumers: Primarily in North America, Europe, and emerging markets.
  • Pharmaceutical formulations for pediatric use: Less common, owing to safety considerations.
  • Combination products: Often combined with antihistamines or decongestants.

Market Drivers

1. Increasing Prevalence of Respiratory Conditions

Respiratory illnesses, including influenza and common cold, remain prevalent globally. The CDC reports that adults experience 2–4 colds annually, with children facing higher frequencies [2]. This sustained demand underpins sales of cough suppressants like DXM Polistirex.

2. Consumer Preference for Convenience and Compliance

Extended-release formulations offer the advantage of simplified dosing regimes, leading to higher compliance, especially among working adults. Market surveys indicate a preference for once-daily medications, aligning with DXM Polistirex’s pharmacokinetics [3].

3. Growing Over-the-Counter Accessibility

Less restrictive OTC access, especially amidst COVID-19, boosts product adoption. Regulatory agencies in the US and EU have maintained or expanded OTC availability for dextromethorphan-based formulations, supporting market growth [4].

4. Innovation in Formulation Technologies

Advances in polymer science and drug delivery systems have enhanced sustained-release capabilities, potentially improving the therapeutic profile of DXM Polistirex and appealing to formulators seeking differentiated products.

Market Challenges and Constraints

1. Regulatory Scrutiny Over Abuse Potential

Dextromethorphan possesses psychoactive properties at high doses, utilized recreationally in some contexts. Regulatory agencies such as the DEA have classified dextromethorphan as a substance requiring monitoring, leading to restrictions that could impact formulations like DXM Polistirex [5].

2. Safety Concerns and Side Effects

Adverse effects—including dizziness, hallucinations, and serotonergic toxicity—necessitate cautious dosing and clear labeling. These factors may limit broad use in vulnerable populations.

3. Competition from Alternative Therapies

The emergence of herbal remedies and homeopathic options, alongside newer pharmaceutical cough suppressants, forms a competitive landscape that could impact market shares.

4. Price Sensitivity and Market Penetration

In emerging markets, price sensitivities may hinder penetration of branded sustained-release formulations, favoring generic or local alternatives.

Regulatory Environment and Impact

The global regulatory framework influences DXM Polistirex's market accessibility. The FDA maintains stringent standards for OTC drugs, requiring extensive safety and efficacy data [4]. Recent initiatives focus on abuse-deterrent formulations to mitigate misuse. As such, pharmaceutical companies investing in DXM Polistirex must adhere to evolving guidelines, affecting development costs and timelines.

Additionally, regulatory controls in certain jurisdictions may restrict or ban specific formulations, compelling manufacturers to adapt or reformulate.

Competitive Landscape

Leading players include Johnson & Johnson, Procter & Gamble, and private generics producers. Market differentiation hinges upon:

  • Efficacy and duration: Extended relief with minimal dosing.
  • Formulation innovations: Incorporation of abuse-deterrent features.
  • Brand trust and consumer loyalty: Established OTC brands possess significant market share.

Emerging biotech firms exploring alternative delivery systems, such as nanoparticle encapsulation, threaten conventional formulations' dominance.

Financial Trajectory and Outlook (2023–2030)

Historical Context

Over recent years, the OTC cough suppressant segment experienced modest growth, buoyed by pandemic-driven increased respiratory illness awareness. DXM Polistirex, as a premium, extended-release product, captured a niche market segment through marketing efforts emphasizing convenience and sustained efficacy.

Projected Growth and Revenue Potential

Based on current trends, the market for dextromethorphan-based products, including DXM Polistirex, is expected to expand at a CAGR of approximately 6% through 2030. The primary growth drivers include:

  • Epidemiological factors: Continued respiratory disease burdens.
  • Product innovation: Adoption of abuse-resistant formulations.
  • Market expansion: Penetration into emerging markets due to rising disposable incomes and healthcare infrastructure.

Large-scale pharmaceutical firms may diversify their portfolios by investing in R&D to develop novel sustained-release formulations, potentially commanding premium pricing. Smaller firms could target niche markets or generate revenue through licensing agreements.

Revenue Projections

Assuming an initial global market valuation of $150 million attributable to DXM Polistirex in 2023, with a conservative CAGR of 6%, revenues could reach approximately $260 million by 2030. These estimates incorporate potential regulatory hurdles and market saturation limits.

Investment and Risk Factors

  • Regulatory risks: Changes restricting over-the-counter availability could reduce market size.
  • Manufacturing costs: Innovations demand capital expenditure, influencing profit margins.
  • Reimbursement dynamics: Growing insurance coverage of OTC products may influence pricing strategies.

Emerging Trends and Opportunities

1. Abuse-Deterrent Formulations

Innovations include adding tamper-resistant features, which could attract regulatory approval and bolster market share.

2. Digital Health Integration

Mobile apps and telehealth services facilitate consumer education and adherence, indirectly boosting product demand.

3. Market Expansion Strategies

Targeting pediatric formulations and developing regions offers growth avenues, contingent upon regulatory approval and tailored marketing efforts.

4. Personalized Medicine

Genotypic considerations related to serotonergic pathways may influence dosing and safety profiles, potentially leading to customized formulations and markets.

Conclusion

Dextromethorphan Polistirex’s market outlook remains cautiously optimistic. While inherent challenges persist—regulatory scrutiny, safety concerns, and competition—advancements in formulation technology, expanding OTC access, and increased consumer awareness sustain favorable growth prospects. Strategic positioning—emphasizing safety, efficacy, and abuse deterrence—will be pivotal for industry stakeholders aiming to capture value in this segment.


Key Takeaways

  • The global cough and cold remedy market’s growth, driven by respiratory illness prevalence and consumer demand for convenience, supports DXM Polistirex’s expansion prospects.
  • Innovation in abuse-deterrent and sustained-release formulations will be critical to differentiate in a competitive landscape.
  • Regulatory environments significantly influence market access; ongoing scrutiny over abuse potential and safety must be navigated diligently.
  • An estimated CAGR of 6% indicates potential revenues surpassing $260 million by 2030, contingent on market acceptance and regulatory compliance.
  • Emerging trends like digital health integration and personalized medicine present strategic opportunities for market leaders.

FAQs

1. What are the primary advantages of Dextromethorphan Polistirex over immediate-release formulations?
Dextromethorphan Polistirex offers sustained cough suppression with once-daily dosing, improving patient compliance and potentially reducing dosing errors compared to immediate-release versions.

2. How does regulatory oversight impact the marketability of DXM Polistirex?
Regulatory agencies regulate dextromethorphan's OTC status and scrutinize abuse potential. Regulatory constraints or reclassification can limit or expand access and influence formulation development.

3. What are the key safety concerns associated with Dextromethorphan Polistirex?
Potential side effects include dizziness, hallucinations at high doses, and serotonergic toxicity. Clear dosing guidelines and abuse mitigation strategies are essential for safe use.

4. Are there emerging therapies competing with Dextromethorphan Polistirex?
Yes, herbal remedies, alternative cough suppressants, and newer pharmaceutical formulations with different mechanisms may compete in the OTC cold remedy market.

5. What strategies can pharmaceutical companies adopt to maximize the market potential of DXM Polistirex?
Focusing on abuse-deterrent formulations, expanding into emerging markets, integrating digital adherence tools, and ensuring regulatory compliance can enhance market share and financial returns.


Sources:

[1] Research and Markets. Global Cough and Cold Remedies Market Size & Share Analysis 2021.
[2] Centers for Disease Control and Prevention (CDC). Annual Cold and Flu Data.
[3] MarketResearch.com. Patient Preferences for OTC Cold Medications.
[4] U.S. Food and Drug Administration (FDA). OTC Drug Review and Regulations.
[5] Drug Enforcement Administration (DEA). Controlled Substances Scheduling.

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