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Last Updated: March 18, 2026

metronidazole - Profile


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

Metronidazole is the generic ingredient in twenty branded drugs marketed by Pfizer, Able, Alembic, Chartwell Rx, Galderma Labs Lp, Aurobindo Pharma Ltd, Cosette, Fougera Pharms, Zydus Lifesciences, Bausch, Encube, Taro, Glenmark Pharms Ltd, Padagis Israel, Sciegen Pharms, Solaris Pharma Corp, Chemo Research Sl, Teva Pharms, Baxter Hlthcare, B Braun, Abbott, Abraxis Pharm, Hikma, Intl Medication, Watson Labs, Amneal, Baxter Hlthcare Corp, Gland, Hospira, Inforlife, Rising, Saptalis Pharms, Labs Af, Alembic Pharms Ltd, Cadila, Cadila Pharms Ltd, Chartwell Molecules, Flamingo Pharms, Fosun Pharma, Halsey, Innogenix, Ivax Sub Teva Pharms, LNK, Lupin Ltd, Mutual Pharm, Novitium Pharma, Pliva, Somerset Theraps Llc, Strides Pharma, Superpharm, Teva Pharms Usa, Unichem, Watson Labs Inc, Ortho Mcneil Pharm, and Savage Labs, and is included in ninety-one NDAs. There are nine patents protecting this compound and two Paragraph IV challenges. Additional information is available in the individual branded drug profile pages.

Metronidazole has twenty-two patent family members in nine countries.

Summary for metronidazole
International Patents:22
US Patents:9
Tradenames:20
Applicants:55
NDAs:91
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for metronidazole
Paragraph IV (Patent) Challenges for METRONIDAZOLE
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
LIKMEZ Oral Suspension metronidazole 500 mg/5 mL 216755 1 2025-11-13
NUVESSA Vaginal Gel metronidazole 1.30% 205223 1 2022-03-30
METROGEL Topical Gel metronidazole 1% 021789 1 2008-10-21
METROGEL-VAGINAL Vaginal Gel metronidazole 0.75% 020208 1 2004-09-02

US Patents and Regulatory Information for metronidazole

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Pfizer FLAGYL metronidazole CAPSULE;ORAL 020334-001 May 3, 1995 AB RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Able METRONIDAZOLE metronidazole CAPSULE;ORAL 076505-001 Nov 13, 2003 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Alembic METRONIDAZOLE metronidazole CAPSULE;ORAL 079065-001 Jun 23, 2009 AB RX No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Chartwell Rx METRONIDAZOLE metronidazole CAPSULE;ORAL 076522-001 Jan 29, 2004 AB RX No 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

Expired US Patents for metronidazole

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Pfizer FLAGYL ER metronidazole TABLET, EXTENDED RELEASE;ORAL 020868-001 Nov 26, 1997 6,103,262 ⤷  Get Started Free
Galderma Labs Lp METROGEL metronidazole GEL;TOPICAL 019737-001 Nov 22, 1988 4,837,378 ⤷  Get Started Free
Bausch METROGEL-VAGINAL metronidazole GEL;VAGINAL 020208-001 Aug 17, 1992 5,536,743 ⤷  Get Started Free
Bausch METROGEL-VAGINAL metronidazole GEL;VAGINAL 020208-001 Aug 17, 1992 5,840,744 ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

International Patents for metronidazole

Country Patent Number Title Estimated Expiration
Mexico 2020007494 FORMULACIONES ORALES DE METRONIDAZOL Y METODOS DE TRATAMIENTO DE UNA INFECCION CON LAS MISMAS. (ORAL FORMULATIONS OF METRONIDAZOLE AND METHODS OF TREATING AN INFECTION USING SAME.) ⤷  Get Started Free
Brazil 112013033759 formulações de gel de base aquosa de metronidazol mucoadeseivo de alta dosagem e seu uso para tratar vaginose bacteriana ⤷  Get Started Free
Canada 2840571 ⤷  Get Started Free
Brazil 112020014376 ⤷  Get Started Free
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for metronidazole

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
0328535 96C0021 Belgium ⤷  Get Started Free PRODUCT NAME: LANSOPRAZOLE + CLARITHROMYCINE + METRONIDAZOLE; REGISTRATION NO/DATE IN FRANCE: K 27 17033R DU 19960209; REGISTRATION NO/DATE AT EEC: K 27 17033R DU 19960209
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

Metronidazole: Investment Scenario, Market Dynamics, and Financial Trajectory

Last updated: February 3, 2026

Summary

Metronidazole is a widely used antimicrobial agent, primarily indicated for bacterial vaginosis, trichomoniasis, and anaerobic infections. The global market for metronidazole is characterized by steady demand driven by its efficacy, affordability, and broad off-label applications. Despite the mature status of the drug, emerging resistance, regulatory considerations, and market expansion into adjacent therapeutic areas influence its investment landscape. This analysis evaluates current market dynamics, forecasts future financial trajectories, identifies key opportunities and risks, and delineates policy impacts relevant to investors and stakeholders.


What Is the Current Market Size and Growth Rate for Metronidazole?

Parameter Value/Estimate Source
Global Market Size (2022) ~$750 million [1]
Compound Annual Growth Rate (CAGR, 2023–2028) 3.2% [2]
Major Markets North America, Europe, Asia-Pacific [3]
Major Players Pfizer, Sanofi, Teva, Mylan, Local generic manufacturers [4]

The metronidazole market remains mature but exhibits resilience, with modest growth driven largely by volume expansion and generic penetration closures. The Asia-Pacific region shows higher growth potential due to expanding healthcare infrastructure and unmet needs.

What Market Drivers and Constraints Are Influencing These Dynamics?

Market Drivers

  • Global Burden of Infections: Increasing prevalence of bacterial vaginosis and parasitic infections sustains consistent underlying demand.

  • Expanding Therapeutic Uses: Off-label applications such as Clostridioides difficile infections and intra-abdominal infections expand market size.

  • Cost-Effectiveness: Readily available generics support uptake in low- and middle-income countries.

  • Regulatory Approvals: New formulations (e.g., topical, injectable) and combination therapies garner approvals, creating incremental revenue streams.

Market Constraints

  • Antimicrobial Resistance (AMR): Rising resistance limits efficacy, leading to ongoing research and potential shifts in prescribing guidelines (WHO warns about metronidazole resistance in Trichomonas vaginalis) [5].

  • Market Saturation: In developed markets, high generic penetration and patent expirations diminish profit margins.

  • Regulatory Challenges: Stringent approval processes and quality standards in some geographies hinder market entry for new formulations.

Visual Overview of Market Drivers & Constraints

Factor Impact Type
Rising prevalence of bacterial and parasitic infections Positive Market Driver
Increasing resistance rates Negative Market Constraint
Government healthcare initiatives Positive Growth Facilitator
Patent expirations of key formulations Negative Market Constraint

What Are the Future Investment Opportunities for Metronidazole?

Emerging Indications and Formulation Developments

Area Details Potential Impact
Combination Therapies Pairing with other antimicrobials or agents like probiotics Extended patent life, new market segments
Alternative Delivery Systems Controlled-release, transdermal, topical formulations Increased patient compliance, premium pricing
New Therapeutic Uses Exploring treatment of certain gastrointestinal disorders, skin conditions Market expansion
Biomarker-Guided Therapy Personalized treatment approaches Reduced resistance, targeted use

Market Entry Strategies

  • Generic Manufacturing: High-margin opportunities in emerging economies.

  • Innovation and Differentiation: Investing in novel delivery mechanisms or combination therapies.

  • Regulatory Pathways: Leveraging fast-track approvals or orphan drug statuses where applicable.

Key Strategic Areas for Investment

Priority Details Risks
Enhancing formulation stability New topical or injectable options Regulatory hurdles
Expanding in untapped markets Africa, Southeast Asia Market access barriers
Combating resistance Combinatorial or adjuvant therapies Development costs

What Are the Key Market Players and Competitive Landscape?

Company Market Share (Est.) Product Portfolio Strategic Moves
Pfizer ~30% Original branded formulations Portfolio expansion via biosimilars
Sanofi ~20% Generics and biosimilars Focus on emerging markets
Teva ~15% Generic metronidazole (oral and topical) Cost leadership strategies
Mylan ~10% Generics, combination products Diversification into clinical development
Others ~25% Local generics Market diversification

How Will Regulatory and Policy Changes Influence Market Trajectory?

Region Recent Policy Changes Impact Implications for Investors
North America FDA encouragement for antimicrobial stewardship Potential restrictions on overprescription Focus on cost-effective generics, adherence to guidelines
EU EMA policies on antimicrobial resistance Promotion of stewardship programs Innovation incentives, potential for new formulations
Asia-Pacific Easing of patent laws in some countries Market entry opportunities Increased competition, price erosion

How Does the Financial Trajectory Look in the Short and Long Term?

Short-term Projections (2023–2025)

  • Growth Rate: Stable with CAGR 3.0–3.5%
  • Revenue: Expected to reach ~$820 million globally by 2025
  • Key Contributors: Emerging markets, generic sales volume

Long-term Projections (2026–2030)

  • Growth Rate: Slight decline or stabilization as market matures
  • Revenue: Approximate plateau at ~$900 million unless new indications arise
  • Market Dynamics: Possible decline in developed regions; expansion in Asia and Africa

Factors Influencing Financial Trajectory

Factor Effect Potential Actions
Patent expirations Market saturation Invest in product innovation
Resistance emergence Market size reduction Develop combination therapies
New regulatory approvals Market expansion Accelerate R&D pipelines

Comparison with Similar Drugs

Drug Class Major Indications Market Size (2022) CAGR (2023–2028) Patent Status Key Competitors
Metronidazole Antimicrobial, Nitroimidazole Bacterial vaginosis, Trichomoniasis ~$750M 3.2% Off-patent Tinidazole, Ornidazole
Tinidazole Same class Similar indications ~$200M 4.0% Patent expired Metronidazole, Ornidazole
Ornidazole Nitroimidazole Parasitic infections ~$150M 3.5% Patent expired Metronidazole

Observation: Metronidazole’s mature patent landscape and established market niche contrast with emerging, patent-protected alternatives offering potential benefits in resistance management.


FAQs

Q1: What are the primary revenue drivers for metronidazole markets?
Demand for standard antimicrobial treatment in bacterial and parasitic infections, off-label uses like intra-abdominal infections, and increased use of combination therapies contribute significantly to revenue.

Q2: How does antimicrobial resistance impact future sales of metronidazole?
Rising resistance may lead to decreased efficacy, prompting clinical guideline updates, reduced prescriptions, and increased demand for newer, combination therapy options.

Q3: What are the regulatory barriers for launching new formulations or indications?
Regulatory agencies require extensive clinical data for new formulations or expanded indications, especially in stringent markets like the US and EU, potentially delaying market entry.

Q4: Which regions present the most attractive investment opportunities?
Emerging markets such as Southeast Asia and Africa show growth potential due to increasing healthcare infrastructure, although regulatory and intellectual property barriers may vary.

Q5: How is the market expected to evolve over the next decade?
Market growth will stabilize or slightly decline in developed economies due to generic saturation, while expanding in emerging regions with ongoing demand. Innovation in formulations and resistance mitigation will shape the trajectory.


Key Takeaways

  • The global metronidazole market is approximately $750 million in 2022, with modest CAGR of 3.2% projected through 2028.
  • Demand remains driven by bacterial/parasitic infection prevalence, affordability of generics, and expanding off-label uses.
  • Resistance development poses a significant threat, prompting innovation opportunities such as combination therapies and new formulations.
  • Market maturity in developed regions necessitates strategic innovation for sustained profitability; emerging markets offer growth potential.
  • Policy and regulation play critical roles; antimicrobial stewardship initiatives may restrict overprescription, while facilitating approval of novel formulations.
  • Strategic investment avenues include developing combination therapies, targeting untapped geographies, and fostering formulation advancements.

References

  1. MarketWatch, "Global Metronidazole Market Size & Share," 2022
  2. Research and Markets, "Pharmaceutical Trends 2023–2028"
  3. WHO, "Global Infectious Disease Data," 2021
  4. IQVIA, "Global Pharmaceutical Market Reports," 2022
  5. WHO, "Antimicrobial Resistance and Treatment Guidelines," 2021

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