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Last Updated: December 18, 2025

DIABINESE Drug Patent Profile


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When do Diabinese patents expire, and what generic alternatives are available?

Diabinese is a drug marketed by Pfizer and is included in one NDA.

The generic ingredient in DIABINESE is chlorpropamide. There are eleven drug master file entries for this compound. Additional details are available on the chlorpropamide profile page.

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Summary for DIABINESE
Drug patent expirations by year for DIABINESE
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US Patents and Regulatory Information for DIABINESE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Pfizer DIABINESE chlorpropamide TABLET;ORAL 011641-003 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Pfizer DIABINESE chlorpropamide TABLET;ORAL 011641-006 Approved Prior to Jan 1, 1982 DISCN Yes 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 DIABINESE (Chlordiazepoxide)

Last updated: July 28, 2025


Introduction

Diabinese, the brand name for the chemical compound chlorpropamide, is not to be confused with chlordiazepoxide—a benzodiazepine. Diabinese is an oral antidiabetic drug primarily used to treat type 2 diabetes mellitus by lowering blood glucose levels. Since its approval in the 1950s, Diabinese has played a role in diabetes management, although its market presence has evolved markedly due to advancements in pharmacotherapy and emerging therapies.

This analysis explores the current market dynamics, competitive landscape, regulatory environment, and the financial trajectory of Diabinese within the broader diabetes treatment market.


Historical Context and Product Profile

Diabinese (Chlorpropamide) was introduced in the late 1950s as one of the earliest sulfonylurea agents for type 2 diabetes. Its mechanism involves stimulating pancreatic insulin secretion and reducing hepatic gluconeogenesis. Historically, it gained popularity for its efficacy, cost-effectiveness, and longevity in clinical use.

However, over the decades, newer drug classes—such as meglitinides, thiazolidinediones, DPP-4 inhibitors, SGLT2 inhibitors, and GLP-1 receptor agonists—have largely displaced Diabinese from first-line therapy due to safety concerns and superior efficacy.


Current Market Size and Segment Positioning

Market Size and Revenue
Diabinese's global market footprint has significantly contracted. While exact sales figures remain proprietary, publicly available estimates suggest minimal current revenue—likely in the low millions of USD annually, primarily attributable to niche use, off-label applications, or generic availability.

Market Segments

  • Niche or Off-Label Use: Some clinicians may prescribe Diabinese for specific cases where modern agents are contraindicated, although this is rare.
  • Historical Prescriptions: Older patient populations, particularly in regions with limited access to newer medications.
  • Generic Availability: As a generic drug, Diabinese is widely sold at low cost, reducing profitability for manufacturers and limiting marketing efforts.

Competitive Landscape
The landscape is dominated by modern diabetes agents offering improved safety profiles and convenience. Brands such as Jardiance (empagliflozin), Ozempic (semaglutide), and Januvia (sitagliptin) overshadow Diabinese in both efficacy and market penetration. Consequently, Diabinese struggles to retain relevance outside residual or specific niche markets.


Regulatory Environment and Patent Lifespan

Regulatory Status
Diabinese is generally regarded as a legacy drug with expired patents, allowing multiple generics to enter the market. Its FDA approval predates modern regulatory frameworks that often require post-marketing safety data, contributing to its diminished regulatory prominence.

Regulatory Challenges and Opportunities

  • Regulatory bodies increasingly prioritize safety and efficacy data, favoring newer agents.
  • Regulatory agencies rarely approve new indications for legacy drugs, restricting growth potential.
  • Opportunities exist for manufacturers to reposition Diabinese within niche markets or repurpose it for other indications, subject to regulatory approval.

Market Drivers and Barriers

Drivers:

  • Cost-effectiveness and low pricing for generic Diabinese mean it can serve low-income or underserved populations.
  • Existing prescriptions and familiarity among some clinicians.
  • Long-term safety record as a legacy medicine.

Barriers:

  • Safety concerns, notably hyponatremia, disulfiram-like reactions, and contraindications in renal impairment, restrict widespread use.
  • Availability of newer agents with better safety profiles.
  • Limited marketing and promotion due to low profitability prospects.
  • Shifts in guidelines recommending newer drug classes as preferred first-line therapies.

Financial Trajectory and Outlook

Revenue Forecasts
Given its minimal market share, Diabinese's revenue trajectory is expected to decline further unless strategic repositioning occurs. The aging patient cohort and increasing adoption of novel therapeutics compound this downward trend.

Pricing and Profitability
Generic availability ensures low prices, keeping profit margins slim. Pharmaceutical companies with legacy drugs often cease active marketing, pushing the drug into a maintenance or niche status.

Potential for Revitalization

  • Label expansion or new indications could offer growth opportunities.
  • Combining Diabinese with other agents for synergistic effects might attract research interest but requires regulatory approval.
  • Repositioning in developing markets with access constraints remains feasible.

Overall, the financial outlook remains subdued unless significant repositioning or innovation strategies are implemented.


Market Challenges and Strategic Opportunities

Challenges:

  • Declining clinical relevance as newer agents dominate.
  • Safety concerns limiting usage.
  • Diminishing profitability discouraging investment.

Opportunities:

  • Tailoring use for specific patient populations resistant to newer drugs.
  • Entry into emerging markets where cost remains a central factor.
  • Development of modified formulations with improved safety profiles.
  • Investigating new therapeutic roles via drug repurposing.

Conclusion

The market dynamics surrounding Diabinese reflect the typical trajectory of legacy antidiabetic agents. Despite a fundamental role in the historical management of type 2 diabetes, it faces substantial obsolescence due to safety profile limitations, the advent of superior pharmacotherapies, and evolving clinical guidelines.

Financially, Diabinese's potential continues to diminish, only maintained by minimal demand and low-cost generic manufacturing. Future growth prospects hinge on niche utilization, strategic repositioning, or markets with limited access to newer options.


Key Takeaways

  • Market Shrinkage: The global market for Diabinese has contracted significantly, driven by safety concerns and therapeutic advancements.
  • Limited Revenue Potential: Its low-cost generic status and niche use keep profits minimal, discouraging aggressive marketing.
  • Regulatory and Clinical Constraints: Safety issues and lack of new indications restrict expansion opportunities.
  • Strategic Repositioning: Potential exists in developing countries or specialized niches, but requires targeted strategies.
  • Future Outlook: Without innovation or repositioning, Diabinese's financial trajectory will remain decline-oriented, emphasizing the need for manufacturers to explore new uses or abandon the model.

FAQs

1. Why has Diabinese’s market share declined significantly over the years?
Due to safety concerns, availability of more effective and safer newer drugs, and updates to clinical guidelines favoring modern agents, Diabinese's use has diminished markedly.

2. Are there any new formulations or indications approved for Diabinese?
Currently, no new formulations or indications have been approved, as the drug remains a legacy therapy with limited regulatory activity.

3. Can Diabinese be used safely in modern diabetes management?
While it has a well-known safety profile, concerns such as hyponatremia and contraindications in renal impairment limit its safe use, making it unsuitable as a first-line therapy today.

4. What markets could potentially benefit from continued use of Diabinese?
Developing countries or low-income regions with limited access to newer medicines may continue to rely on Diabinese due to its low cost.

5. Is there any potential for Diabinese in drug repurposing?
Research into new therapeutic roles or combined therapies could offer opportunities, but such initiatives require substantial investment and regulatory approval processes.


References

[1] Drug Approval History and Market Data: FDA Archives.
[2] Global Diabetes Market Reports, MarketWatch.
[3] Safety Profiles and Clinical Guidelines, American Diabetes Association.
[4] Industry Reports on Legacy Drug Market Trends.

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