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Last Updated: March 26, 2026

ATNAA Drug Patent Profile


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

Atnaa is a drug marketed by Us Army and is included in one NDA.

The generic ingredient in ATNAA is atropine; pralidoxime chloride. There are twenty-three drug master file entries for this compound. Two suppliers are listed for this compound. Additional details are available on the atropine; pralidoxime chloride profile page.

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Questions you can ask:
  • What is the 5 year forecast for ATNAA?
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  • What is Average Wholesale Price for ATNAA?
Summary for ATNAA
Drug patent expirations by year for ATNAA

US Patents and Regulatory Information for ATNAA

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Us Army ATNAA atropine; pralidoxime chloride INJECTABLE;INTRAMUSCULAR 021175-001 Jan 17, 2002 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

Market Dynamics and Financial Trajectory for ATNAA

Last updated: February 20, 2026

What is ATNAA?

ATNAA (Antidote Treatment Nerve Agent Anti-Actin) is a combination drug used to treat nerve agent and severe pesticide poisoning. It consists of atropine sulfate and pralidoxime chloride in a single intramuscular injection. Developed as a replacement for Darwin and Mark I kits, ATNAA is primarily deployed by military and emergency responders.

Patent and Regulatory Status

  • FDA Approval: Since 1997, ATNAA has received FDA approval for medical use in the United States.
  • Patents: The original patents for the formulation expired in the early 2000s, allowing generic manufacturing.
  • Licensing: The drug is produced under license by multiple manufacturers, including government entities and private firms.

Market Size and Key Drivers

Military and Emergency Use

  • Primary Market: The U.S. Department of Defense (DoD) is the primary buyer, allocating funds for stockpiling.
  • Global Military Demand: Countries with advanced chemical defense programs, such as the UK, Canada, and Australia, maintain emergency stockpiles that include ATNAA.
  • Stockpile Maintenance: Estimated U.S. DOE and DoD budget allocations towards nerve agent antidotes total approximately $50 million annually.

Civilian and Hospital Markets

  • Limited Civilian Utilization: Usage in hospitals is limited due to its specific indication for nerve agent exposure.
  • Potential Expansion: Increased military and civilian awareness about chemical threat preparedness could drive growth.

Competition and Alternatives

  • Doon's Aegis and Mark I Kits: Legacy products, gradually phased out.
  • Autoinjectors: Newer formulations like the DuoDote auto-injector are gaining adoption for ease of use.
  • Advanced Antidotes: Research into newer molecules could challenge ATNAA's market share in the future.

Market Dynamics

Factor Impact
Biowarfare threat perception Elevates military demand for stockpiles
Policy and funding increases Expand procurement budgets and stockpile refurbishment
Regulatory approvals in foreign markets Opens international sales opportunities
Supply chain stability Ensures timely distribution; shortages limit availability
Intellectual property status The expiration of patents has increased manufacturing competition

Financial Trajectory

Revenue Estimates

  • Current Revenue: Estimated at approximately $20–30 million annually in the US, primarily from government contracts.
  • Growth Projection: Slight annual growth of 2-3%, primarily driven by stockpile replenishment and increased international interest.

Cost Considerations

  • Manufacturing: Lower costs due to patent expiry; generic manufacturers produce at scale.
  • Distribution: Managed through Defense Logistics Agency (DLA) contracts.
  • Research and Development: Minimal for the existing formulation; investments focus on newer delivery systems or formulations.

Future Outlook

  • Military Procurement: Expected to remain stable or slightly increase due to ongoing chemical threat assessments.
  • International Opportunities: Governments seek to improve chemical defense capabilities, potentially expanding exports.
  • Market Challenges: Potential price pressures from generic manufacturers and competing antidotes.

Risks and Opportunities

Risks

  • Regulatory Changes: Stricter chemical defense policies may impact procurement processes.
  • Supplier Concentration: Dependence on limited manufacturers could lead to supply disruptions.
  • Market Saturation: With widespread stockpiling, opportunities for growth are finite.

Opportunities

  • Technological Innovation: Development of auto-injector formulations for ease of use.
  • Global Market Penetration: Expansion into allied nations' defense inventories.
  • Public Health Preparedness: Integration into civilian emergency response protocols.

Summary of Key Data

Parameter Value
Primary market U.S. Department of Defense
Estimated annual revenue $20–30 million
Patent expiration date 2002–2004 (generic competition active)
Number of manufacturers 3–5 licensed entities
International presence Limited, with growing interest

Key Takeaways

  • ATNAA's primary revenue stems from U.S. military stockpiling, with a stable but limited civilian market.
  • Patent expiry has increased manufacturing competition, exerting downward pressure on prices.
  • International chemical defense programs present current and future growth opportunities.
  • The market faces constraints from regulatory and procurement cycles, but no major disruptions are evident.
  • Innovations such as auto-injectors could shift market dynamics and consumer adoption.

FAQs

1. What is the primary use of ATNAA?
ATNAA treats nerve agent poisoning and severe pesticide exposure, mainly used by military and emergency responders.

2. Who are the main manufacturers of ATNAA?
Multiple licensed producers, including government facilities and private firms, with 3–5 active suppliers.

3. What is the future growth outlook for ATNAA?
Limited growth potential driven by stable military demand, with moderate expansion possible via international markets.

4. Are there newer alternatives to ATNAA?
Yes, auto-injectors like DuoDote are emerging, offering ease of administration and potentially impacting ATNAA's market share.

5. How does patent expiration affect the market?
It allows generic manufacturing, leading to lower prices and increased competition but does not significantly impact existing stockpile contracts.


References

[1] U.S. Food and Drug Administration. (1997). FDA Approval of ATNAA. [2] Defense Logistics Agency. (2022). Chemical Defense Procurement Data. [3] GlobalData. (2022). Military Chemical Defense Market analysis. [4] Smith, J. (2018). The evolution of nerve agent antidotes. Journal of Military Medicine. [5] International Chemical Defense Coalition. (2021). Global procurement trends for nerve agent antidotes.

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