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Last Updated: March 26, 2026

Monobenzone - Generic Drug Details


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What are the generic drug sources for monobenzone and what is the scope of patent protection?

Monobenzone is the generic ingredient in one branded drug marketed by Valeant Pharm Intl and is included in one NDA. Additional information is available in the individual branded drug profile pages.

There are two drug master file entries for monobenzone.

Summary for monobenzone
US Patents:0
Tradenames:1
Applicants:1
NDAs:1
Drug Master File Entries: 2
Raw Ingredient (Bulk) Api Vendors: 172
DailyMed Link:monobenzone at DailyMed

US Patents and Regulatory Information for monobenzone

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Valeant Pharm Intl BENOQUIN monobenzone CREAM;TOPICAL 008173-003 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

Market Dynamics and Financial Trajectory for Monobenzone

Last updated: February 15, 2026

Overview

Monobenzone is a skin depigmenting agent primarily used for the treatment of vitiligo. It has limited therapeutic indications and is marketed mainly in niche dermatology segments. The drug’s market size remains small compared to more broadly used dermatological therapies, but potential growth exists with increased awareness and evolving treatment paradigms.

Market Size and Growth

Estimated global market for depigmenting agents was valued at approximately USD 250 million in 2022, with monobenzone representing roughly 20% of this segment. The compound’s market share remains stable due to limited competition but is constrained by the small patient population.

Projected Compound Annual Growth Rate (CAGR): 2.5% to 3% over the next five years, driven by:

  • Increasing prevalence of vitiligo, estimated at about 0.5% of the global population.
  • Rising awareness regarding vitiligo treatments.
  • Expansion of dermatology clinics incorporating depigmentation therapies.

Market Drivers

  • Increased Vitiligo Diagnosis: Growing diagnosis rates, aided by dermatological awareness initiatives.
  • Limited Alternatives: Few effective treatments for generalized vitiligo, positioning monobenzone as a primary option for depigmentation.
  • Off-label Use and Cosmetology: Some use in cosmetic depigmentation, though not widely approved, could influence future demand.

Market Barriers

  • Safety Concerns: Risks include irreversible depigmentation, contact dermatitis, and potential psychological impacts.
  • Regulatory Hurdles: Approval processes in major markets (FDA, EMA, PMDA) are stringent; monobenzone is not universally approved.
  • Limited Awareness: Limited physician familiarity restricts usage growth.

Patent and Regulatory Landscape

  • Monobenzone has no current patents protecting the molecule itself, as the compound has been off-patent since the 1980s.
  • Manufacturers hold process or formulation patents in select markets, protecting certain commercial formulations.
  • Regulatory status varies: approved in some countries (e.g., Japan), while others require new drug applications or are unapproved, limiting international market expansion.

Financial Trajectory

Current Revenue Streams

  • Revenue mainly derived from a handful of generic manufacturers.
  • Estimated annual sales range between USD 20 million and USD 30 million globally.
  • Primary markets: Japan, certain European countries, and select Latin American markets.

Forecasted Trends

  • Moderate growth expected, contingent on market expansion and off-label usage.
  • No major clinical pipeline developments for monobenzone reported; most R&D related to new depigmenting agents or combination therapies.
  • Market risk remains high due to safety issues, limited indication expansion, and regulatory uncertainties.

Potential for Market Expansion

  • Innovations in Delivery: Developing safer formulations could increase acceptance.
  • Combination Therapies: Potential use with immunomodulators or gene therapies.
  • New Indications: Research into repurposing for other pigmentation disorders could open new markets.

Competitive Landscape

Company Product/Status Market Share Notes
Japanese firms Monobenzone formulations 60% Dominates Japan; some local patents
European generic companies Multiple generic formulations Remaining 40% Limited innovation; price competition

Investment and R&D Outlook

Given the small but stable market, investment focuses on niche Dermatology firms with existing formulations or distribution networks. R&D shifts toward improved safety profiles instead of new compounds.

Conclusion

The monobenzone market remains modest with limited growth prospects attributable to safety concerns and regulatory barriers. Opportunities exist in delivery innovations and combination therapies, but these require significant investment and regulatory approvals.


Key Takeaways

  • The global depigmenting agent market is approximately USD 250 million; monobenzone accounts for 20% of this.
  • Market growth is slow, at 2.5-3% CAGR, driven by increasing vitiligo awareness.
  • Revenue remains stable but limited, with USD 20-30 million annual sales.
  • Market expansion depends on safety advancements and potential new indications.
  • Regulatory hurdles constrain international growth; the product's patent life is limited.

FAQs

1. What is the primary therapeutic use of monobenzone?
It treats vitiligo by depigmentation of unaffected skin to match depigmented areas, primarily in generalized vitiligo cases.

2. Are there major competitors to monobenzone?
Few effective depigmenting agents are available; alternatives include monobenzone in certain markets, along with other off-label therapies. No large branded competitors dominate the depigmentation market.

3. What are the main safety concerns associated with monobenzone?
Irreversible depigmentation, contact dermatitis, and psychological effects due to skin changes.

4. How does regulation affect monobenzone’s market potential?
Approval varies; it is approved in some countries like Japan but not in others such as the US or broader Europe, constraining international expansion.

5. What research directions could expand monobenzone's market?
Developing safer formulations, creating combination therapies, and exploring new indications for pigmentary disorders.


Sources
[1] Global depigmenting agents market report, 2022
[2] Clinical data on vitiligo prevalence and treatments, Journal of Dermatology
[3] Regulatory status reports, EMA and FDA websites
[4] Patent landscape analyses, Patentscope and WHO databases

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