You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: December 16, 2025

Ethopropazine hydrochloride - Generic Drug Details


✉ Email this page to a colleague

« Back to Dashboard


What are the generic drug sources for ethopropazine hydrochloride and what is the scope of patent protection?

Ethopropazine hydrochloride is the generic ingredient in one branded drug marketed by Parke Davis and is included in one NDA. Additional information is available in the individual branded drug profile pages.

Summary for ethopropazine hydrochloride
US Patents:0
Tradenames:1
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors: 47
DailyMed Link:ethopropazine hydrochloride at DailyMed

US Patents and Regulatory Information for ethopropazine hydrochloride

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Parke Davis PARSIDOL ethopropazine hydrochloride TABLET;ORAL 009078-006 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Parke Davis PARSIDOL ethopropazine hydrochloride TABLET;ORAL 009078-008 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Parke Davis PARSIDOL ethopropazine hydrochloride TABLET;ORAL 009078-003 Approved Prior to Jan 1, 1982 DISCN No No ⤷  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

Market Dynamics and Financial Trajectory for Ethopropazine Hydrochloride

Last updated: August 17, 2025

Introduction

Ethopropazine hydrochloride, a carbamate derivative primarily utilized as an anticholinergic agent, has historically played a distinctive role in managing extrapyramidal disorders, including Parkinsonian symptoms and drug-induced hyperkinesia. While its medical usage has seen shifts over decades, understanding its current market dynamics and financial outlook offers critical insights for stakeholders involved in pharmaceutical R&D, manufacturing, and healthcare market analysis.

This analysis explores the evolving landscape of ethopropazine hydrochloride—its pharmacological profile, manufacturing trends, regulatory environment, market demand, and future growth prospects—aiming to inform strategic business decisions in an increasingly complex pharmaceutical ecosystem.


Pharmacological Profile and Therapeutic Indications

Ethopropazine hydrochloride acts as an anticholinergic agent by antagonizing muscarinic receptors, thereby mitigating cholinergic overactivity associated with extrapyramidal symptoms. These symptoms predominantly include drug-induced Parkinsonism, dystonia, and other movement disorders. Historically, the drug has been prescribed for these indications, especially in conjunction with dopamine agonists or levodopa therapy.

However, over recent years, therapeutic preferences have shifted towards newer agents with improved safety profiles and targeted efficacy, such as atypical antipsychotics and adjunctive treatments that have replaced drugs like ethopropazine in numerous contexts.


Market Dynamics

Regulatory Landscape and Approvals

Ethopropazine hydrochloride retains approval in certain regions, especially in countries with longstanding regulatory acceptance, including parts of Europe and Asia. However, in the United States, it is not approved for any indication by the FDA, constraining its distribution chiefly to local markets with less regulatory stringency or historical use.

Regulatory hurdles significantly influence its market penetration, with active approval variations directly impacting manufacturing licenses, R&D investments, and commercial viability.

Manufacturing Trends and Supply Chain Factors

The production of ethopropazine hydrochloride hinges on established chemical synthesis routes, with several generic manufacturers historically supplying the drug. Yet, limited demand due to decreased clinical use has resulted in a decline in manufacturing scale, potentially affecting economies of scale, production costs, and quality control standards.

Supply chain disruptions, as observed during global crises such as COVID-19, pose additional challenges, especially for countries relying on imported active pharmaceutical ingredients (APIs).

Market Demand and Usage Trends

Global demand for ethopropazine hydrochloride has experienced a steady decline over the past two decades. The reasons include:

  • Therapeutic shifts: The advent of newer, safer, and more effective agents for extrapyramidal disorders.
  • Side effect profile: Ethopropazine is associated with anticholinergic side effects, including dry mouth, blurred vision, constipation, and cognitive impairment, which favor alternative therapies.
  • Regulatory restrictions: Variations in approval and prescribing guidelines restrict its scope.

In emerging markets, where older drugs may persist due to cost or regulatory lag, ethopropazine still sees limited use, mostly in niche indications or traditional medicine settings.

Competitive Landscape

The current market landscape features minimal direct competition, primarily from other anticholinergic drugs like benztropine or trihexyphenidyl. However, these alternatives often outperform ethopropazine in safety and tolerability, further diminishing ethopropazine’s prominence.

Furthermore, high-margin specialty medications for movement disorders have diminished the attractiveness of ethopropazine, relegating it to a niche or generic status with low pricing pressure.


Financial Trajectory and Outlook

Revenue Trends

Given declining demand, revenue generation for ethopropazine hydrochloride has contracted considerably. Many pharmaceutical firms have ceased manufacturing or have minimized inventory due to low profitability and market relevance.

Historical revenue data suggests a steep decline post-2010s, with some regional markets maintaining marginal sales chiefly through off-label or traditional applications, though precise figures remain scarce due to limited reporting.

Research and Development Investment

Investment in R&D for ethopropazine has diminished in line with market demand. No recent novel formulations or new therapeutic applications have been widely pursued, indicating that its future financial trajectory relies heavily on existing generic markets, with minimal upside for innovation.

Forecast and Market Potential

Prognostic models anticipate continued decline or stagnation for ethopropazine hydrochloride, barring unforeseen regulatory or therapeutic breakthroughs. Factors such as aging populations with movement disorders could sustain minimal niche use, but large-scale commercial appeal appears limited.

Long-term, the drug’s financial trajectory is expected to remain subdued, with possible brief resurgence in markets with limited access to newer agents or in traditional medicine contexts. Nonetheless, major pharmaceutical companies are unlikely to prioritize investments due to limited profitability.


Strategic Considerations

  • Market Exit or Diversification: Firms heavily invested in ethopropazine should consider divestment or reallocation of resources toward more competitive or innovative assets.

  • Regulatory Navigation: For markets where ethopropazine remains approved, maintaining compliance and exploring off-label or traditional medicine avenues could sustain minimal revenues.

  • Niche and Traditional Uses: Exploiting ethnomedicinal applications in specific regions may offer marginal growth opportunities, though with limited scalability.

  • Patent and IP Management: As a generic drug, extensive patent protections are largely absent, diminishing opportunities for exclusivity-driven revenue expansion.


Conclusion

The market dynamics and financial prospects of ethopropazine hydrochloride are characterized by significant decline, limited growth potential, and overarching shifts toward newer therapies. Its role remains confined to niche markets or traditional medicine contexts in select regions, with broader adoption waning due to safety concerns, regulatory restrictions, and evolving clinical standards.

For stakeholders, strategic decisions should focus on portfolio adjustments, exploring niche applications, or divestment, aligning with the limited expected fiscal trajectory.


Key Takeaways

  • Ethopropazine hydrochloride’s decline stems from superior therapeutic alternatives, safety profile concerns, and regulatory restrictions.
  • Global manufacturing has contracted, with supply mainly driven by generic producers in select regions.
  • Revenue prospects are minimal, with forecasts indicating continued stagnation or further decline.
  • Future growth relies on niche markets or traditional applications, with limited mainstream commercial viability.
  • Strategic realignment, including divestment or exploring traditional medicine, aligns best with its market reality.

FAQs

1. Is ethopropazine hydrochloride approved in the United States?
No, it is not approved by the FDA for any indication in the U.S., limiting its distribution primarily to regions where it remains approved.

2. What are the main clinical indications for ethopropazine?
Historically, it was used to treat extrapyramidal symptoms, such as Parkinsonism and drug-induced dystonia, but these uses are now largely obsolete with newer therapies.

3. Are there ongoing research initiatives involving ethopropazine?
Currently, there are minimal or no significant clinical research initiatives focusing on ethopropazine, reflecting its diminished therapeutic appeal.

4. How does the safety profile of ethopropazine affect its market demand?
Its association with anticholinergic side effects, especially cognitive impairment in elderly populations, negatively impacts its clinical use and market demand.

5. Can ethopropazine be used off-label for other conditions?
While off-label use is possible in some regions, such practices are limited due to safety concerns and a lack of supporting evidence, and are generally not recommended.


References

  1. Pharmacological Profile of Ethopropazine.
  2. Regulatory and Market Data.
  3. Global Pharmaceutical Market Trends.
  4. Therapeutic Shift in Movement Disorders.
  5. Generic Drug Market Analysis.

More… ↓

⤷  Get Started Free

Make Better Decisions: Try a trial or see plans & pricing

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.