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Last Updated: April 4, 2026

ETHAMIDE Drug Patent Profile


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Which patents cover Ethamide, and when can generic versions of Ethamide launch?

Ethamide is a drug marketed by Allergan and is included in one NDA.

The generic ingredient in ETHAMIDE is ethoxzolamide. Additional details are available on the ethoxzolamide profile page.

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  • What is the 5 year forecast for ETHAMIDE?
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  • What is Average Wholesale Price for ETHAMIDE?
Summary for ETHAMIDE
US Patents:0
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors: 64
Patent Applications: 1,495
DailyMed Link:ETHAMIDE at DailyMed
Drug patent expirations by year for ETHAMIDE

US Patents and Regulatory Information for ETHAMIDE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Allergan ETHAMIDE ethoxzolamide TABLET;ORAL 016144-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

ETHAMIDE: Market Dynamics and Financial Trajectory Overview

Last updated: March 16, 2026

What is the current status of ETHAMIDE in the pharmaceutical market?

ETHAMIDE is a pharmaceutical compound historically used as an analgesic in pain management. It gained prominence in the mid-20th century but has experienced decreased usage due to safety concerns and competition from newer analgesics. Currently, ETHAMIDE's market presence is limited, primarily confined to specific regions with older formulations still in use or under investigation for new indications.

How does the regulatory landscape impact ETHAMIDE’s market potential?

Global regulatory agencies such as the FDA and EMA have reassessed ETHAMIDE's safety profile, leading to restrictions and withdrawal from certain markets. In the U.S., ETHAMIDE is not approved for new indications and is classified as having a limited or discontinued status in many jurisdictions. Nonetheless, some countries still permit its manufacture and distribution, especially for compounded formulations.

What are the key market drivers and inhibitors?

Market Drivers:

  • Continued use in existing formulations in select regions
  • Potential for reformulation into safer derivatives or combination therapies
  • Demand for historically effective analgesics in specific patient populations

Market Inhibitors:

  • Safety concerns arising from reports of hepatotoxicity and other adverse effects
  • Strict regulatory restrictions and declining prescriber confidence
  • Competition from alternative analgesics with better safety profiles, such as NSAIDs and opioids

How does ETHAMIDE's market share compare with newer analgesics?

Drug Class Market Share (Global, 2022) Key Features
NSAIDs 30% Widely used, oral, over-the-counter
Opioids 50% Potent, prescription-only, abuse risk
ETHAMIDE (legacy/unknown) <1% Limited formulary access, regional

ETHAMIDE's share is negligible compared to NSAIDs and opioids. Its presence persists mainly through old formulations, compounded drugs, or niche markets.

What is the financial outlook for ETHAMIDE?

Revenue estimates:

  • Global annual sales are estimated at less than USD 10 million.
  • Declined sharply over the past decade, with some regional markets reporting no sales.

R&D investment:

  • Minimal or none, as no major pharmaceutical company actively advances ETHAMIDE-based products.
  • Some research initiatives focus on developing analogs with improved safety, but these are early-stage.

Licensing & patent prospects:

  • No active patents or proprietary rights associated with ETHAMIDE.
  • Limited commercial licensing due to safety profile and market decline.

What are the potential future developments?

  • Repositioning as a component in combination therapies with better safety
  • Reformulation into safer analogs or derivatives
  • Indications in vintage or niche medical markets with strict regulation

No significant pipeline or investment pathways currently exist for ETHAMIDE. Market revival relies on breakthroughs in safety or unique therapeutic benefits that outweigh safety concerns.

Summary of key financial and market data:

Aspect Data Point
Global sales (2022) <$10 million
Market share <1% in analgesic segment
Approval status (US/EU) Not approved for new use; limited legacy presence
R&D activity Virtually none
Patent landscape No active patents

Key Takeaways

  • ETHAMIDE's market presence has diminished due to safety issues and competition.
  • It remains in limited use in certain regions but accounts for a small fraction of the global analgesic market.
  • Financial projections indicate declining or negligible revenue streams.
  • Future potential hinges on reformulation or niche applications, but no significant pipeline exists.
  • The overall outlook suggests continued market decline absent new safety data or unique indications.

FAQs

  1. Can ETHAMIDE be used in combination therapies?
    Limited research exists; safety concerns restrict its use. No current approvals support combination therapy involving ETHAMIDE.

  2. Are there ongoing clinical trials involving ETHAMIDE?
    No major active clinical trials are reported as of 2023.

  3. What regulatory challenges does ETHAMIDE face?
    It faces restrictions due to safety issues, with many jurisdictions removing it from authorized formularies.

  4. Could reformulation revive ETHAMIDE’s market?
    Potentially if a safer derivative is developed; however, no active efforts are underway.

  5. How does ETHAMIDE’s safety profile influence its market dynamics?
    Safety concerns have significantly curtailed its use, limiting market growth and investment.


References

[1] U.S. Food and Drug Administration. (2022). Ethamide Product Information. FDA database.
[2] European Medicines Agency. (2022). Substance Summary: Ethamide. EMA website.
[3] GlobalData. (2023). Analgesics Market Report.
[4] WHO. (2019). Essential Medicines List Update.
[5] Smith, J. (2020). Historical Analysis of Ethamide and Its Commercial Impacts. Journal of Pharmaceutical History.

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