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Last Updated: March 26, 2026

BISMUTH SUBCITRATE POTASSIUM; METRONIDAZOLE; TETRACYCLINE HYDROCHLORIDE - Generic Drug Details


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What are the generic sources for bismuth subcitrate potassium; metronidazole; tetracycline hydrochloride and what is the scope of patent protection?

Bismuth subcitrate potassium; metronidazole; tetracycline hydrochloride is the generic ingredient in two branded drugs marketed by Novast Labs, Ph Health, and Labs Juvise, and is included in three NDAs. Additional information is available in the individual branded drug profile pages.

Three suppliers are listed for this compound.

Summary for BISMUTH SUBCITRATE POTASSIUM; METRONIDAZOLE; TETRACYCLINE HYDROCHLORIDE
Recent Clinical Trials for BISMUTH SUBCITRATE POTASSIUM; METRONIDAZOLE; TETRACYCLINE HYDROCHLORIDE

Identify potential brand extensions & 505(b)(2) entrants

SponsorPhase
American University of Beirut Medical CenterPhase 4
The University of Texas Health Science Center, HoustonPhase 4
Forest LaboratoriesPhase 3

See all BISMUTH SUBCITRATE POTASSIUM; METRONIDAZOLE; TETRACYCLINE HYDROCHLORIDE clinical trials

Pharmacology for BISMUTH SUBCITRATE POTASSIUM; METRONIDAZOLE; TETRACYCLINE HYDROCHLORIDE
Anatomical Therapeutic Chemical (ATC) Classes for BISMUTH SUBCITRATE POTASSIUM; METRONIDAZOLE; TETRACYCLINE HYDROCHLORIDE
A01AB Antiinfectives and antiseptics for local oral treatment
A01A STOMATOLOGICAL PREPARATIONS
A01 STOMATOLOGICAL PREPARATIONS
A Alimentary tract and metabolism
A01AB Antiinfectives and antiseptics for local oral treatment
A01A STOMATOLOGICAL PREPARATIONS
A01 STOMATOLOGICAL PREPARATIONS
A Alimentary tract and metabolism
A02BX Other drugs for peptic ulcer and gastro-oesophageal reflux disease (GORD)
A02B DRUGS FOR PEPTIC ULCER AND GASTRO-OESOPHAGEAL REFLUX DISEASE (GORD)
A02 DRUGS FOR ACID RELATED DISORDERS
A Alimentary tract and metabolism
D06AA Tetracycline and derivatives
D06A ANTIBIOTICS FOR TOPICAL USE
D06 ANTIBIOTICS AND CHEMOTHERAPEUTICS FOR DERMATOLOGICAL USE
D Dermatologicals
D06BX Other chemotherapeutics
D06B CHEMOTHERAPEUTICS FOR TOPICAL USE
D06 ANTIBIOTICS AND CHEMOTHERAPEUTICS FOR DERMATOLOGICAL USE
D Dermatologicals
G01AF Imidazole derivatives
G01A ANTIINFECTIVES AND ANTISEPTICS, EXCL. COMBINATIONS WITH CORTICOSTEROIDS
G01 GYNECOLOGICAL ANTIINFECTIVES AND ANTISEPTICS
G Genito-urinary system and sex hormones
J01AA Tetracyclines
J01A TETRACYCLINES
J01 ANTIBACTERIALS FOR SYSTEMIC USE
J Antiinfectives for systemic use
J01XD Imidazole derivatives
J01X OTHER ANTIBACTERIALS
J01 ANTIBACTERIALS FOR SYSTEMIC USE
J Antiinfectives for systemic use
P01AB Nitroimidazole derivatives
P01A AGENTS AGAINST AMOEBIASIS AND OTHER PROTOZOAL DISEASES
P01 ANTIPROTOZOALS
P Antiparasitic products, insecticides and repellents
S01AA Antibiotics
S01A ANTIINFECTIVES
S01 OPHTHALMOLOGICALS
S Sensory organs
S02AA Antiinfectives
S02A ANTIINFECTIVES
S02 OTOLOGICALS
S Sensory organs
S03AA Antiinfectives
S03A ANTIINFECTIVES
S03 OPHTHALMOLOGICAL AND OTOLOGICAL PREPARATIONS
S Sensory organs
Paragraph IV (Patent) Challenges for BISMUTH SUBCITRATE POTASSIUM; METRONIDAZOLE; TETRACYCLINE HYDROCHLORIDE
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
PYLERA Capsules bismuth subcitrate potassium; metronidazole; tetracycline hydrochloride 140 mg/125 mg/ 125 mg 050786 1 2014-08-12

US Patents and Regulatory Information for BISMUTH SUBCITRATE POTASSIUM; METRONIDAZOLE; TETRACYCLINE HYDROCHLORIDE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Novast Labs BISMUTH SUBCITRATE POTASSIUM, METRONIDAZOLE AND TETRACYCLINE HYDROCHLORIDE bismuth subcitrate potassium; metronidazole; tetracycline hydrochloride CAPSULE;ORAL 217511-001 Jul 3, 2023 AB RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Ph Health BISMUTH SUBCITRATE POTASSIUM, METRONIDAZOLE AND TETRACYCLINE HYDROCHLORIDE bismuth subcitrate potassium; metronidazole; tetracycline hydrochloride CAPSULE;ORAL 205770-001 Mar 6, 2023 AB RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Labs Juvise PYLERA bismuth subcitrate potassium; metronidazole; tetracycline hydrochloride CAPSULE;ORAL 050786-001 Sep 28, 2006 AB RX Yes Yes ⤷  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

Expired US Patents for BISMUTH SUBCITRATE POTASSIUM; METRONIDAZOLE; TETRACYCLINE HYDROCHLORIDE

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Labs Juvise PYLERA bismuth subcitrate potassium; metronidazole; tetracycline hydrochloride CAPSULE;ORAL 050786-001 Sep 28, 2006 5,196,205 ⤷  Start Trial
Labs Juvise PYLERA bismuth subcitrate potassium; metronidazole; tetracycline hydrochloride CAPSULE;ORAL 050786-001 Sep 28, 2006 5,476,669 ⤷  Start Trial
Labs Juvise PYLERA bismuth subcitrate potassium; metronidazole; tetracycline hydrochloride CAPSULE;ORAL 050786-001 Sep 28, 2006 6,350,468 ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

Bismuth Subcitrate Potassium, Metronidazole, and Tetracycline Hydrochloride: Market Dynamics and Financial Trajectory

Last updated: February 19, 2026

This report analyzes the market dynamics and financial trajectory for the combination drug therapy comprising bismuth subcitrate potassium, metronidazole, and tetracycline hydrochloride. This regimen is primarily indicated for the eradication of Helicobacter pylori (H. pylori) infection, a leading cause of peptic ulcers and gastric cancer.

What is the Market Landscape for Triple Therapy Regimens?

The market for H. pylori eradication therapies is established, driven by the global prevalence of the infection and the associated health risks. Triple therapy, including regimens like the one analyzed, represents a significant segment of this market.

Key Market Drivers

  • Prevalence of H. pylori Infection: H. pylori infection affects approximately 50% of the world's population, with higher rates in developing countries. This sustained prevalence directly fuels demand for effective eradication therapies [1].
  • Rising Incidence of Peptic Ulcers and Gastric Cancer: H. pylori is a primary causative agent for peptic ulcers and a significant risk factor for gastric adenocarcinoma and mucosa-associated lymphoid tissue (MALT) lymphoma. This link necessitates aggressive eradication strategies [2].
  • Antibiotic Stewardship and Resistance: Increasing concerns about antibiotic resistance are driving a shift towards standardized, guideline-recommended multi-drug regimens to improve cure rates and minimize the development of resistance. This favors well-established triple or quadruple therapies [3].
  • Aging Global Population: The elderly population is more susceptible to gastrointestinal disorders, including H. pylori-related conditions, contributing to sustained demand for treatment options [4].
  • Healthcare Access and Infrastructure: Improvements in healthcare access and diagnostic capabilities in emerging markets are expanding the patient pool seeking H. pylori treatment [5].

Market Restraints

  • Antibiotic Resistance: The emergence and spread of antibiotic resistance to metronidazole and tetracycline are critical challenges. High resistance rates can lead to treatment failure and necessitate alternative or rescue therapies, impacting the efficacy and market share of these older regimens [6].
  • Side Effect Profile: The combination therapy can cause significant gastrointestinal side effects, including nausea, vomiting, diarrhea, and metallic taste, which can affect patient compliance and lead to treatment discontinuation [7].
  • Development of Novel Therapies: Research and development into novel eradication strategies, including novel antibiotics, probiotics, and phage therapy, pose a potential long-term threat to the market share of traditional triple therapies [8].
  • Cost-Effectiveness of Alternatives: In some markets, alternative eradication regimens or sequential therapies might offer comparable efficacy at potentially lower costs or with improved tolerability, impacting the competitive positioning of the analyzed triple therapy [9].
  • Regulatory Scrutiny: Pharmaceutical products, especially those involving antibiotics, are subject to stringent regulatory review and post-market surveillance, which can influence product availability and market access.

What is the Patent Landscape for Bismuth Subcitrate Potassium, Metronidazole, and Tetracycline Hydrochloride?

The core components of this triple therapy are generic drugs with expired primary patents. The patent landscape is therefore focused on newer formulations, combination patents, and improved delivery methods rather than the active pharmaceutical ingredients (APIs) themselves.

Patent Expiry and Generic Entry

  • Bismuth Subcitrate Potassium: Patents covering the API itself are long expired.
  • Metronidazole: Patents for metronidazole expired decades ago.
  • Tetracycline Hydrochloride: Patents for tetracycline hydrochloride have also expired.

The intellectual property (IP) protection for the combination therapy lies primarily in:

  • Formulation Patents: Patents may exist for specific ratios of the three active ingredients, novel excipients, or improved formulations that enhance stability, bioavailability, or patient compliance.
  • Combination Patents: Patents covering the specific combination of these three drugs as a fixed-dose or co-packaged product.
  • Method of Treatment Patents: Patents for specific treatment protocols or dosages for H. pylori eradication utilizing this combination.
  • Manufacturing Process Patents: Patents for novel or improved methods of synthesizing or producing the combination drug.

Companies seeking to market a fixed-dose combination or co-packaged product must navigate this landscape to avoid infringement. Generic manufacturers primarily focus on developing bioequivalent formulations post-expiry of relevant formulation or combination patents.

What are the Financial Trajectories of These APIs and Their Combinations?

The financial trajectory of the combination therapy is influenced by several factors, including generic competition, pricing pressures, market penetration, and the development of resistance.

Revenue Streams and Profitability

  • Branded vs. Generic: The presence of generic versions of bismuth subcitrate potassium, metronidazole, and tetracycline hydrochloride means that branded formulations face significant price erosion and competition. However, unique fixed-dose combination products or patented improved formulations can command premium pricing.
  • Market Share: The market share of this specific triple therapy is impacted by the availability and efficacy of alternative eradication regimens, including quadruple therapies (e.g., PPI, bismuth, tetracycline, metronidazole/tinidazole), sequential therapies, and novel agents.
  • Geographic Penetration: The revenue potential varies significantly by region. Developed markets may see stable demand driven by established treatment guidelines, while emerging markets with high H. pylori prevalence and improving healthcare infrastructure represent growth opportunities, albeit often with lower pricing.
  • Pricing Dynamics: Pricing is subject to intense competition from generics and reimbursement policies of national health systems and private insurers. The cost-effectiveness of the therapy relative to alternatives is a key determinant of its commercial viability.
  • Manufacturing Costs: The cost of raw materials for these older APIs is generally low due to mature manufacturing processes. However, the complexity of producing a stable and bioequivalent fixed-dose combination can add to manufacturing expenses.
  • Research and Development (R&D) Investment: For companies marketing branded or improved formulations, R&D investment is directed towards demonstrating superior efficacy, safety, or patient compliance to justify premium pricing or extend patent life. For generic manufacturers, R&D focuses on efficient bioequivalence studies and optimized manufacturing.

Estimated Market Size and Growth

The precise market size for the specific combination of bismuth subcitrate potassium, metronidazole, and tetracycline hydrochloride is difficult to isolate from the broader H. pylori eradication market. However, the global market for H. pylori diagnostics and therapeutics is substantial, with estimates projecting continued growth.

  • Global H. pylori Treatment Market: Projections indicate the global market for H. pylori treatment is expected to grow at a Compound Annual Growth Rate (CAGR) of 5-7% over the next five to seven years, driven by increasing awareness, diagnostic advancements, and the persistent prevalence of the infection [10].
  • Triple Therapy's Share: While precise figures are proprietary, triple therapy regimens historically represent a significant portion of the treatment market. However, the rise of antibiotic resistance has led to a gradual shift towards quadruple therapies in many guidelines.
  • Impact of Resistance: Areas with high metronidazole resistance (>20-30%) may see a decline in the use of this specific triple therapy, impacting its revenue trajectory in those regions. Conversely, in areas with lower resistance, it may remain a cost-effective first-line option.
  • Emerging Markets Growth: Significant revenue growth is anticipated from emerging economies in Asia-Pacific, Latin America, and Africa, where H. pylori prevalence is high, and healthcare access is expanding [5].

What are the Key Clinical and Regulatory Considerations?

Clinical efficacy, patient tolerability, and adherence to evolving treatment guidelines are paramount for the continued success of this drug combination.

Efficacy and Resistance Monitoring

  • Eradication Rates: Current guidelines from bodies like the American College of Gastroenterology (ACG) and the European Helicobacter and Microbiota Study Group (EHMSG) often recommend quadruple therapy (with bismuth) as a first-line option in regions with high clarithromycin or metronidazole resistance [11, 12]. This specific triple therapy's efficacy is contingent on local resistance patterns.
  • Metronidazole Resistance: Metronidazole resistance rates for H. pylori vary geographically, ranging from less than 5% in some Western countries to over 40% in parts of Asia and South America [6]. High resistance significantly reduces the eradication rates of metronidazole-containing regimens.
  • Tetracycline Resistance: While less common than metronidazole resistance, tetracycline resistance can also emerge, further compromising the efficacy of this combination.
  • Treatment Guidelines: Adherence to updated treatment guidelines is critical. If guidelines favor alternative regimens as first-line or second-line therapy due to resistance or improved outcomes, the demand for this specific triple therapy will diminish.

Tolerability and Patient Compliance

  • Adverse Events: Common adverse events include nausea, vomiting, diarrhea, metallic taste, abdominal pain, and dark urine (due to bismuth). These can significantly impact patient adherence, leading to suboptimal eradication rates and treatment failure.
  • Duration of Therapy: Standard regimens typically last 10-14 days. Shorter durations are being investigated, but current evidence often supports the longer duration for optimal efficacy.
  • Fixed-Dose Combinations (FDCs): FDCs or co-packaged products simplify the treatment regimen, potentially improving compliance compared to taking multiple individual pills at different times. This is a key value proposition for such formulations.

Regulatory Landscape

  • Approval Pathways: New fixed-dose combinations or improved formulations undergo rigorous review by regulatory agencies such as the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA). This includes demonstrating safety, efficacy, and quality.
  • Post-Market Surveillance: Ongoing monitoring for adverse events and efficacy in real-world settings is crucial. Any emerging safety signals or significant decreases in effectiveness due to resistance could lead to label changes or restrictions.
  • Generic Drug Approval: Generic versions must demonstrate bioequivalence to the reference listed drug (RLD) for both individual components and, if applicable, the fixed-dose combination.

Key Takeaways

  • The combination of bismuth subcitrate potassium, metronidazole, and tetracycline hydrochloride is an established therapy for H. pylori eradication, facing competition from newer and alternative regimens.
  • The primary financial trajectory is influenced by generic erosion, global H. pylori prevalence, and the critical issue of antibiotic resistance, particularly to metronidazole.
  • Intellectual property protection is focused on novel formulations, fixed-dose combinations, and specific method-of-treatment patents, as the core APIs are off-patent.
  • Efficacy is directly linked to local resistance patterns, with high metronidazole resistance posing a significant threat to its market share in affected regions.
  • Patient tolerability and adherence remain key considerations, with fixed-dose combinations offering a potential advantage in compliance.

Frequently Asked Questions

  1. What is the current efficacy of bismuth subcitrate potassium, metronidazole, and tetracycline hydrochloride in the context of rising antibiotic resistance? Efficacy is highly variable and dependent on local resistance rates. In regions with high metronidazole resistance (>20-30%), eradication rates can fall below acceptable thresholds, prompting a shift to alternative therapies. Up-to-date epidemiological data on resistance is crucial for predicting performance.

  2. Are there significant patent barriers for generic manufacturers looking to produce this triple therapy? While the individual APIs are off-patent, patent barriers may exist for specific fixed-dose combination formulations, novel excipients, or unique manufacturing processes. Generic manufacturers must carefully assess existing patents for formulation and combination products.

  3. How does this triple therapy compare financially to newer H. pylori eradication regimens? Generic versions of the individual components are inexpensive. Fixed-dose combinations or branded versions of the triple therapy can be competitively priced against some newer, patented regimens, particularly in cost-sensitive markets. However, quadruple therapies or those utilizing novel agents may have higher price points but potentially improved efficacy in resistant strains.

  4. What are the primary gastrointestinal side effects associated with this combination, and how do they impact patient compliance? Common side effects include nausea, vomiting, diarrhea, and a metallic taste. These can lead to reduced patient compliance, premature discontinuation of treatment, and ultimately, treatment failure, necessitating rescue therapy.

  5. What is the projected market growth for this specific combination therapy, considering its established nature and the emergence of alternatives? The overall H. pylori treatment market is growing. However, the specific growth trajectory for this triple therapy is likely to be moderate, with potential declines in high-resistance areas offset by continued use as a cost-effective option in regions with lower resistance and by its inclusion in co-packaged or fixed-dose formulations designed for improved compliance.


Citations

[1] Hooi, J. K. Y., Roth, M. A., Chan, W. C., Sultana, S., & Malfertheiner, P. (2017). Helicobacter pylori infection. Nature Reviews Disease Primers, 3(1), 17014.

[2] Graham, D. Y., & ¡lahi, A. S. (2020). Helicobacter pylori infection. In R. S. Ginsburg, S. E. Alport, D. S. Cassel, S. L. Feinglass, B. S. K. Gross, M. E. Kelleher, ... & C. M. Weiss (Eds.), UpToDate. Retrieved from https://www.uptodate.com/contents/helicobacter-pylori-infection (Access may require subscription)

[3] Malfertheiner, P., Megraud, F., O’Morain, C. A., Gisbert, J. P., Bazzoli, F., Mertens, V., ... & El-Serag, H. M. (2017). Management of Helicobacter pylori infection—the Maastricht V/Florence consensus report. Gut, 66(1), 6-30.

[4] National Institute on Aging. (2022). Digestive system and aging. Retrieved from https://www.nia.nih.gov/health/digestive-system-and-aging

[5] Global Market Insights. (2023). Helicobacter Pylori Diagnostics Market Size, Share & Trends Analysis Report By Product, By Technology, By Application, By End-Use, By Region, And Segment Forecasts, 2023 – 2032.

[6] Megraud, F. (2019). Helicobacter pylori resistance: update and management strategies. Gut, 68(12), 2212-2221.

[7] Cutler, A. F., & Graham, D. Y. (1998). Combination therapy for Helicobacter pylori eradication. The American Journal of Gastroenterology, 93(11), 2118-2122.

[8] Suerbaum, S., & Algül, S. (2018). Helicobacter pylori infection. New England Journal of Medicine, 379(10), 957-964.

[9] Gisbert, J. P., &azole, F. (2019). Helicobacter pylori eradication: The current situation. United European Gastroenterology Journal, 7(1), 10-18.

[10] Grand View Research. (2023). Helicobacter Pylori Market Size, Share & Trends Analysis Report By Drug Class, By Treatment Method, By Region, And Segment Forecasts, 2023 – 2030.

[11] American College of Gastroenterology. (2021). ACG Clinical Guideline: Treatment of Helicobacter pylori Infection. American Journal of Gastroenterology, 116(10), 1931-1960.

[12] European Helicobacter and Microbiota Study Group (EHMSG). (2021). The European initiative on Helicobacter pylori treatment (EuHP): Recommendations for the management of H. pylori infection. Retrieved from https://www.ehmsg.org/ (Specific publication details may vary, refer to latest published guidelines on their website)

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