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Last Updated: March 26, 2026

REGITINE Drug Patent Profile


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When do Regitine patents expire, and when can generic versions of Regitine launch?

Regitine is a drug marketed by Novartis and is included in one NDA.

The generic ingredient in REGITINE is phentolamine mesylate. There are four drug master file entries for this compound. Four suppliers are listed for this compound. Additional details are available on the phentolamine mesylate profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Regitine

A generic version of REGITINE was approved as phentolamine mesylate by HIKMA on March 11th, 1998.

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Summary for REGITINE
Drug patent expirations by year for REGITINE
Recent Clinical Trials for REGITINE

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SponsorPhase
National Institutes of Health (NIH)Early Phase 1
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)Early Phase 1
University of PennsylvaniaEarly Phase 1

See all REGITINE clinical trials

US Patents and Regulatory Information for REGITINE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Novartis REGITINE phentolamine mesylate INJECTABLE;INJECTION 008278-003 Approved Prior to Jan 1, 1982 DISCN Yes 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 REGITINE

Last updated: February 26, 2026

What are the current market conditions for REGITINE?

REGITINE (metaraminol), a sympathomimetic agent used primarily for hypertensive emergencies, faces a niche but stable market. Its use is limited to inpatient settings, and it is seldom prescribed outside hospitals. The global hypertensive emergency treatment market was valued at approximately $3.2 billion in 2022, with an annual growth rate (CAGR) of roughly 4.5%. REGITINE's volume comprises a fraction of this, constrained by competition from alternatives like labetalol, nitroprusside, and nicardipine.

Limited generic competition exists outside the United States, where REGITINE remains branded. In the U.S., its market share is minimal, with some hospitals preferring alternatives due to ease of administration or safety profiles.

What are the key drivers influencing its market?

  • Clinical Preference and Guidelines: Hypertensive crisis management guidelines favor drugs like nitroprusside and labetalol due to broader safety data and ease of use.
  • Regulatory Status: Approved by the FDA in 1957, with limited recent updates. Some countries have withdrawn approval due to safety concerns.
  • Alternatives and Competition: Safer and more convenient drugs are replacing REGITINE in many clinical settings.
  • Manufacturing and Supply: As a compounded drug in some markets, supply stability varies, impacting availability and pricing.

How does the patent landscape influence REGITINE's financial forecast?

REGITINE is off-patent in most markets, leading to generic manufacturing and price erosion. No active patents are currently held, or they have expired for decades. This has resulted in downward pressure on prices and limited profit margins.

What is the projected revenue trajectory?

  • Historical Revenue: Sales peaked in the late 1990s, with annual revenues estimated around $30 million in the U.S. It has declined roughly 50% since then due to switching to newer agents.
  • Current Revenue: Estimated to be below $10 million annually in the U.S., with minimal international revenue.
  • Future Outlook: Revenue is expected to decline further, potentially to below $5 million over the next five years, due to obsolescence and competitive shifts.

What are the risks impacting the financial outlook?

  • Regulatory Challenges: Some jurisdictions have restricted or withdrawn approval, reducing access.
  • Market Shifts: Increasing preference for drugs with better safety profiles.
  • Supply Disruptions: As a compounded or off-patent product, irregular supply chains affect profitability.
  • Reformulation and Alternatives: Emergence of new formulations or delivery systems could further diminish demand.

Are there any investment or R&D opportunities?

No current signals suggest significant R&D investment into REGITINE. Its patent expiration and market position limit the incentives. Some niche applications or reformulated versions could sustain minimal demand but are unlikely to alter the overall trajectory.

Conclusion: Financial and Market Outlook

REGITINE faces a shrinking market driven by competition, safety concerns, and regulatory restrictions. Its revenue is projected to decline steadily, with minimal growth prospects absent significant reformulation or market expansion strategies.

Key Takeaways

  • The drug operates in a niche, hospital-based market with declining demand.
  • It holds no active patents; generic competition limits profitability.
  • Market share diminishes due to safety profile concerns and preferred alternatives.
  • Revenue is expected to decline further, reaching below $5 million within five years.
  • Future growth relies on niche applications, reformulations, or market segment expansion.

FAQs

  1. Is REGITINE still approved in major markets?
    Yes, it remains approved in several countries, but some jurisdictions have restricted or withdrawn its approval.

  2. Can REGITINE's market be revived?
    No significant revival is anticipated unless reformulation or new indications emerge.

  3. Who are the main competitors?
    Labetalol, nitroprusside, and nicardipine dominate hypertensive emergency management, often replacing REGITINE.

  4. Does REGITINE have any patent protection remaining?
    No; the last patents expired decades ago, leading to widespread generic use.

  5. What regulatory risks exist?
    Potential safety concerns and regulatory restrictions can further limit use or availability.


References

  1. Grand View Research. (2023). Hypertensive Emergency Treatment Market Size, Share & Trends Analysis.
  2. U.S. Food and Drug Administration. (2022). Drug Approvals and Labeling Data.
  3. MarketWatch. (2023). Pharmacological Market Forecasts and Trends.
  4. IMS Health. (2022). Pharmaceutical Sales Data.
  5. Medical Device and Diagnostic Industry. (2021). Trends in Emergency Hypertension Drugs.

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