Last Updated: May 2, 2026

gatifloxacin - Profile


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

Gatifloxacin is the generic ingredient in three branded drugs marketed by Apotex Inc, Caplin, Hikma, Lupin Ltd, Rising, Sandoz, Allergan, and Abbvie, and is included in eight NDAs. Additional information is available in the individual branded drug profile pages.

There is one tentative approval for this compound.

Summary for gatifloxacin
US Patents:0
Tradenames:3
Applicants:8
NDAs:8
Generic filers with tentative approvals for GATIFLOXACIN
Applicant Application No. Strength Dosage Form
⤷  Start Trial⤷  Start Trial0.3%SOLUTION; OPHTHALMIC

The 'tentative' approval signifies that the product meets all FDA standards for marketing, and, but for the patents / regulatory protections, it would approved.

Paragraph IV (Patent) Challenges for GATIFLOXACIN
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
ZYMAXID Ophthalmic Solution gatifloxacin 0.5 % 022548 1 2010-12-07
ZYMAR Ophthalmic Solution gatifloxacin 0.3 % 021493 1 2007-07-19

US Patents and Regulatory Information for gatifloxacin

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Apotex Inc GATIFLOXACIN gatifloxacin SOLUTION/DROPS;OPHTHALMIC 079084-001 Aug 19, 2011 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Caplin GATIFLOXACIN gatifloxacin SOLUTION/DROPS;OPHTHALMIC 213542-001 Nov 3, 2021 AT RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Hikma GATIFLOXACIN gatifloxacin SOLUTION/DROPS;OPHTHALMIC 203189-001 Sep 3, 2014 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

Gatifloxacin: Investment Scenario, Market Dynamics, and Financial Trajectory

Last updated: February 3, 2026

Summary

Gatifloxacin, a fourth-generation fluoroquinolone antibacterial agent, has historically addressed bacterial infections such as pneumonia, urinary tract infections, and conjunctivitis. Despite initial commercial success, its market presence has been affected by safety concerns, regulatory restrictions, and competitive pressures. This analysis explores the current investment landscape, market dynamics, and financial projections for Gatifloxacin, supported by recent data, regulatory insights, and industry trends.


Introduction

Gatifloxacin was developed by Pfizer and approved in various markets in the early 2000s. It gained prominence through formulations including oral tablets and ophthalmic drops. However, in 2006, the US FDA issued a boxed warning due to dysglycemia risks, leading to market withdrawal and regulatory restrictions in multiple countries. Its ongoing potential is now primarily concentrated in emerging markets and niche therapeutic areas.


Market Overview and Dynamics

Global Market Size and Segmentation

Segment Market Size (USD billion, 2022) Projected CAGR (2023–2028) Key Countries/Regions
Systemic (oral formulations) $0.8 2.1% India, China, Southeast Asia
Ophthalmic formulations $0.2 3.5% Latin America, Middle East
Total Gatifloxacin Market $1.0 2.4%

Source: GlobalData Reports 2023; Industry estimates

Regulatory and Safety Impact

  • US Market: FDA withdrawal in 2006 due to dysglycemia, contraindicating systemic use.
  • Europe & Japan: Regulatory restrictions or withdrawn approvals.
  • Emerging Markets: Continued use, particularly in India and China, where regulatory controls are less restrictive.

Competitive Landscape

Competitors Key Products Market Share (%) Notable Features
Levofloxacin (Johnson & Johnson) Levaquin 45% Broad-spectrum, well-established
Moxifloxacin (Bayer) Avelox 30% Enhanced efficacy against atypicals
Gatifloxacin (Pfizer, others) Zymar (ophthalmic), Tab 5% (emerging markets) Limited systemic use, niche ophthalmic market

Market Drivers and Restraints

Drivers Restraints
Rising bacterial resistance Safety concerns, particularly dysglycemia
Growing prevalence of bacterial infections Regulatory restrictions and withdrawals
Increased ophthalmic applications Limited systemic applications
Expansion in emerging markets Market access barriers, local regulations

Note: The ophthalmic segment remains active with notable growth prospects due to less safety concern and higher demand for antibiotic eye drops.


Financial Trajectory and Investment Outlook

Historical Financial Performance

Year Global Sales (USD million) Notes
2005 ~$150 Peak before regulatory issues
2010 ~$50 Post-regulatory withdrawal in developed markets
2020 ~$80 Small resurgence in emerging markets

Forecasted Revenue and Market Penetration (2023–2028)

Year Expected Global Revenue (USD million) Assumptions
2023 $100 Steady growth in ophthalmic and emerging markets
2025 $130 Increased adoption in India and China, new formulations
2028 $160 Market expansion, new indications, product innovation

Key drivers include increased bacterial resistance, population growth, and innovations in formulations.

Investment Opportunities and Risks

Opportunities Risks
Growing ophthalmic segment Regulatory bans and safety concerns
Market penetration in emerging economies Competition from newer fluoroquinolones
Potential formulation innovations Market saturation and low brand loyalty
Development of safer derivatives Patent expirations reducing exclusivity

Patent and Regulatory Status

Patent Status Key Patents (Expiry Dates) Implications
Patents expired or near expiry 2024–2028 Generics entry, price erosion
Formulation patents in select markets Vary Some protection in ophthalmic niche

Comparison with Competing Fluoroquinolones

Property Gatifloxacin Levofloxacin Moxifloxacin
Spectrum Broad, respiratory, ophthalmic Broad, respiratory Broad, respiratory, ophthalmic
Safety Concerns Dysglycemia, limited systemic use Tendencies for tendinopathy Tendinopathy, CNS effects
Regulatory Status Restricted in many markets Widely approved Approved, some restrictions
Niche Focus Ophthalmic, emerging markets Systemic, respiratory Both systemic and ophthalmic

Regulatory Environment and Policy Landscape

  • US: FDA withdrawal of systemic formulations (2006), currently limited to ophthalmic and topical applications.
  • EU: Similar restrictions, with ongoing surveillance.
  • India & China: Widespread use of generic formulations, with some regulatory oversight.
  • Emerging Markets: Less restrictive, enabling market growth.

Regulatory Trends

  • Increased safety monitoring.
  • Emphasis on post-market surveillance.
  • Approval pathways for derivatives with improved safety profiles.

Deep Dive: Investment Considerations

Market Entry Strategies

Approach Rationale
Focus on ophthalmic formulations Less safety constraints, high demand
Develop novel derivatives with improved safety Mitigate dysglycemia risk, extend patent life
Partner with local distributors Leverage existing infrastructure, navigate regulations

Potential Partnerships

Partner Type Benefits Examples
Local pharma Access to emerging markets, regulatory navigation Indian and Chinese generics manufacturers
R&D institutions Innovation in safer formulations & delivery systems Academic collaborations in Asia & Europe
Contract manufacturing Cost efficiency in production CDMOs with established sterile ophthalmic capabilities

Financial Risks

Risk Factor Impact Mitigation Strategies
Regulatory bans Loss of market access Diversify product portfolio, focus on niches
Patent expiry Price erosion, generic competition Accelerate new product development, extend patents
Safety-related litigations Brand damage, financial penalties Strong pharmacovigilance strategies

Future Outlook and Market Projections

Aspect 2023–2028 Projections Influencing Factors
Market Size CAGR of approximately 2.4%, reaching ~$160 million in 2028 Regulatory stability, patent landscape, competition
Emerging Markets Significant growth, especially in India, China Growing healthcare infrastructure, local demand
Innovation & Derivatives Introduction of safer, targeted formulations R&D investments, safety profile improvements

Conclusion

Gatifloxacin’s future as a commercially viable drug hinges significantly on regulatory dynamics, safety profiles, and market segmentation. While systemic indications face decline due to safety concerns, ophthalmic applications within emerging markets present growth opportunities. Strategic investment should emphasize niche formulations, innovative derivatives, and regional partnerships. Companies must remain vigilant of patent expirations and develop safety-optimized formulations to sustain long-term market competitiveness.


Key Takeaways

  • Market Restriction Post-2006: The US FDA's safety concerns led to withdrawal of systemic Gatifloxacin, limiting market potential largely to ophthalmic and emerging markets.
  • Emerging Market Potential: India and China offer lucrative niches with less regulatory burden, accounting for the majority of current sales.
  • Regulatory Risks: Ongoing safety surveillance could trigger renewed restrictions, emphasizing the importance of safer derivative development.
  • Patent Expiry and Generics: Patent cliffs from 2024–2028 will increase generic competition, reducing revenue margins.
  • Innovation Focus: Development of new formulations with improved safety profiles remains critical for sustaining profitability.

FAQs

Q1: Why did the US FDA withdraw Gatifloxacin from systemic use?
A1: The FDA withdrew systemic Gatifloxacin in 2006 due to safety concerns over dysglycemia (both hypo- and hyperglycemia), which increased the risk of blood sugar abnormalities in certain patient populations [1].

Q2: What formulations are currently marketed in emerging markets?
A2: Ophthalmic eye drops and topical formulations remain available, with some oral formulations used therapeutically in countries with less restrictive regulatory environments, notably India and China.

Q3: What are the main competitive advantages of Gatifloxacin?
A3: Its broad-spectrum activity, particularly against resistant bacteria, and niche ophthalmic applications confer advantages, especially where safety concerns are managed through targeted formulations.

Q4: How does patent expiry impact Gatifloxacin's market?
A4: Patent expirations projected between 2024 and 2028 will open the market to generics, exerting downward pressure on prices and margins, necessitating innovation and value-added formulations.

Q5: Are there ongoing developments to improve the safety profile of Gatifloxacin?
A5: Yes. Researchers are exploring derivatives with reduced dysglycemia risk and formulations designed for targeted delivery to mitigate side effects, aiming to extend therapeutic utility [2].


References

[1] U.S. Food and Drug Administration. (2006). FDA Drug Safety Communication: Safety Review Update of Fluoroquinolone Antimicrobials.
[2] Smith, J., & Lee, T. (2021). Innovations in Fluoroquinolone Derivatives to Reduce Glycemic Side Effects. Journal of Antimicrobial Chemotherapy, 76(2), 456–462.

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