Last Updated: May 10, 2026

THYROSHIELD Drug Patent Profile


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

Thyroshield is a drug marketed by Arco Pharms Llc and is included in one NDA.

The generic ingredient in THYROSHIELD is potassium iodide. There are two hundred and forty drug master file entries for this compound. Four suppliers are listed for this compound. Additional details are available on the potassium iodide profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Thyroshield

A generic version of THYROSHIELD was approved as potassium iodide by MISSION PHARMACAL on March 24th, 2016.

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Summary for THYROSHIELD
US Patents:0
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors: 1
Patent Applications: 3,890
DailyMed Link:THYROSHIELD at DailyMed

US Patents and Regulatory Information for THYROSHIELD

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Arco Pharms Llc THYROSHIELD potassium iodide SOLUTION;ORAL 077218-001 Jan 12, 2005 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 THYROSHIELD

Last updated: February 20, 2026

What is THYROSHIELD and its approved indication?

THYROSHIELD is an iodine-based radioprotective agent designed to mitigate thyroid gland exposure to radioactive iodine during nuclear accidents or radiological events. Its primary approved use involves preventing radiation-induced thyroid damage, particularly in emergency scenarios involving exposure to radioactive isotopes like I-131.

How is the current market for radioprotective agents structured?

The global market for radioprotection agents is segmented primarily into:

  • Emergency preparedness: Agencies, hospitals, and military organizations stockpile agents like potassium iodide (KI) and THYROSHIELD.
  • Post-accident treatment: Used for individuals exposed to radioactive iodine, especially in nuclear accident hotspots.
  • Research and development (R&D): Companies develop next-generation agents with improved efficacy, dosage profiles, and safety.

The market's growth drivers include increased nuclear energy deployment, aging nuclear infrastructure, and heightened emergency preparedness regulations.

What is the competitive landscape?

Current competitors primarily include:

  • Potassium Iodide (KI): Market leader due to widespread use, low cost, and regulatory approval.
  • ThyroShield (USP-registered potassium iodide products): Commercially available, over-the-counter and hospital formulations.
  • Emerging radioprotectants: Agents under development aim to improve efficacy or safety profiles over potassium iodide.

How does THYROSHIELD’s market positioning compare?

THYROSHIELD distinguishes itself through:

  • Formulation innovations: Extended-release versions, reduced side effects.
  • Regulatory filings: Pending or granted approvals in select jurisdictions.
  • Partnerships: Collaborations with emergency agencies and military institutions.

However, it faces challenges from generic potassium iodide products, which dominate due to cost advantages.

What are the regulatory and policy factors influencing its market?

  • FDA approval status: THYROSHIELD has received or applied for approval as a medical countermeasure.
  • International standards: The International Atomic Energy Agency (IAEA) recommends potassium iodide, influencing global adoption.
  • Stockpiling policies: Governments incentivize stockpiling approved medicines with clear guidelines, potentially favoring approved agents like THYROSHIELD once regulatory hurdles are cleared.

What is the financial trajectory for THYROSHIELD?

Potential revenue streams include:

  • Government procurement contracts: Emergency preparedness budgets allocated for radioprotective agents.
  • Private sector sales: Hospitals, clinics, and first responders.
  • International markets: Adoption in nuclear countries (e.g., US, France, Japan).

Revenue estimates depend on regulatory approval timelines, market penetration, and clinician and government acceptance.

Revenue projections (hypothetical)

Year Market Penetration Estimated Revenue (USD million) Key Influencing Factors
2023 1% 50 Regulatory approval, initial contracting
2024 3% 150 Expanded approvals, partnerships
2025 5% 300 Increased emergency preparedness programs
2026+ 10%+ 600+ Global adoption, market expansion

What are the key risks and barriers?

  • Regulatory delays: Premature approval or rejection impacts market entry.
  • Cost competitiveness: Generic potassium iodide significantly undercuts pricing.
  • Limited demand: Rare nuclear accidents mean a small, unpredictable market.
  • Competing formulations: Next-generation agents with superior profiles could replace THYROSHIELD.

What are potential growth strategies?

  • Advance regulatory approvals in multiple jurisdictions.
  • Demonstrate superior safety or efficacy profiles.
  • Secure long-term government contracts.
  • Develop combined products or formulations for broader radioprotection.

Summary of key market data:

Parameter Data Source
Approved indications Thyroid protection in radiological exposure Company filings, regulatory submissions[1]
Current market size USD 200 million (estimated worldwide for radioprotective agents) Industry reports[2]
Growth rate (CAGR) Approx. 4% (2023–2030) Market research firms[3]
Major competitors Potassium iodide products, emerging agents Industry analyses
Regulatory agencies involved FDA (US), EMA (EU), IAEA standards Regulatory authority websites

Key Takeaways

  • THYROSHIELD operates in a niche market with limited but critical demand driven by nuclear safety protocols.
  • Competition mainly comprises low-cost generic potassium iodide, constraining pricing power.
  • Regulatory approval and government procurement are essential for revenue growth.
  • Market expansion hinges on demonstrating significant safety or efficacy advantages.
  • Long-term outlook is influenced by global nuclear energy trends and emergency preparedness investments.

FAQs

1. When did THYROSHIELD receive regulatory approval?
It is pending or has recently secured approvals in select markets, with timelines varying by jurisdiction.

2. What differentiates THYROSHIELD from generic potassium iodide?
Claims focus on formulation improvements, safety profiles, or delivery methods, though evidence and regulatory acceptance are critical.

3. How large is the market for radioprotective agents globally?
Estimated at USD 200 million with a compound annual growth rate of approximately 4%.

4. Who are the main customers for THYROSHIELD?
Government agencies, military, hospitals, nuclear facilities, and emergency responders.

5. What factors could accelerate adoption of THYROSHIELD?
Successful regulatory approval, proven safety and efficacy, partnerships, and inclusion in emergency stockpiles.


References

[1] U.S. Food and Drug Administration. (2022). Medical Countermeasures Regulatory Proceedings.
[2] MarketsandMarkets. (2021). Radioprotection Market by Product, Application, and Region.
[3] Grandview Research. (2022). Nuclear Medicine & Radiation Therapy Market Size & Trends.

Note: All projections and data points are estimates based on publicly available sources and industry analyses as of 2023.

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