Last Updated: May 11, 2026

Oxytetracycline calcium - Generic Drug Details


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

Oxytetracycline calcium is the generic ingredient in one branded drug marketed by Pfizer and is included in one NDA. Additional information is available in the individual branded drug profile pages.

There are four drug master file entries for oxytetracycline calcium.

Summary for oxytetracycline calcium
Recent Clinical Trials for oxytetracycline calcium

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SponsorPhase
Federal University of São PauloPhase 4
Fundação de Amparo à Pesquisa do Estado de São PauloPhase 4

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US Patents and Regulatory Information for oxytetracycline calcium

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Pfizer TERRAMYCIN oxytetracycline calcium SYRUP;ORAL 060595-001 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

Oxytetracycline Calcium: Market Dynamics and Financial Trajectory

Last updated: February 19, 2026

Oxytetracycline calcium, a broad-spectrum tetracycline antibiotic, exhibits a mature market characterized by established generics and steady demand driven by agricultural and veterinary applications. The compound's long patent history and established safety profile contribute to a stable, albeit slow-growth, financial trajectory. Key market segments include animal feed additives and therapeutic treatments for livestock and aquaculture.

What is the Current Market Size and Growth Rate for Oxytetracycline Calcium?

The global market for oxytetracycline calcium is estimated at approximately $250 million in 2023. The market is projected to grow at a Compound Annual Growth Rate (CAGR) of 2.5% from 2024 to 2030. This growth is primarily attributed to the increasing demand for animal protein globally, necessitating enhanced animal health and productivity, particularly in developing economies [1].

Who are the Key Manufacturers and Suppliers of Oxytetracycline Calcium?

The manufacturing landscape for oxytetracycline calcium is dominated by generic producers, with a significant presence of companies based in China and India. Key players include:

  • Anhui Fengyang Group Co., Ltd.
  • Henan Jiujiu Pharmaceutical Co., Ltd.
  • Tianjin Nootropics Co., Ltd.
  • Yuxing Chemical Co., Ltd.
  • Qilu Pharmaceutical Co., Ltd.
  • Zhejiang NHU Co., Ltd.

These manufacturers primarily serve the animal health sector, supplying active pharmaceutical ingredients (APIs) for veterinary formulations.

What are the Primary Applications and End-Use Industries for Oxytetracycline Calcium?

The primary applications of oxytetracycline calcium are found in the animal health sector, where it functions as a critical treatment and preventative measure against bacterial infections.

  • Animal Feed Additives: A significant portion of oxytetracycline calcium is incorporated into animal feed to promote growth and prevent disease in livestock such as poultry, swine, and cattle. This application aims to improve feed conversion ratios and reduce mortality rates [2].
  • Veterinary Therapeutics: The drug is used to treat a range of bacterial infections in animals, including respiratory diseases, gastrointestinal infections, and mastitis. Specific animal categories benefiting from these treatments include cattle, sheep, pigs, poultry, and fish [3].
  • Aquaculture: Oxytetracycline calcium is utilized in aquaculture to manage bacterial diseases in farmed fish and shellfish, contributing to sustainable seafood production.

What is the Patent Landscape for Oxytetracycline Calcium?

Oxytetracycline calcium's core patents expired decades ago, leading to a highly genericized market. The original patents for oxytetracycline were first granted in the 1950s. While no active patents cover the molecule itself, minor process patents or formulation patents may exist, but these do not significantly impede generic competition or market entry. The lack of patent exclusivity means that pricing is largely dictated by production costs and market supply [4].

What are the Regulatory Considerations and Approvals Affecting the Market?

Regulatory oversight for oxytetracycline calcium is stringent, particularly concerning its use in food-producing animals. Regulatory bodies worldwide, such as the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA), set limits on withdrawal periods to ensure no residues remain in animal products intended for human consumption [5].

  • Maximum Residue Limits (MRLs): Regulatory agencies establish MRLs for oxytetracycline calcium in various animal tissues and food products. Adherence to these limits is critical for market access and consumer safety.
  • Withdrawal Periods: Specific withdrawal periods are mandated between the last administration of the drug and the harvesting or consumption of the animal product. These vary by species and dosage [5].
  • Good Manufacturing Practices (GMP): Manufacturers of oxytetracycline calcium API and finished veterinary products must adhere to GMP guidelines to ensure product quality, safety, and efficacy.
  • Antibiotic Resistance Monitoring: Growing concerns about antimicrobial resistance are leading to increased scrutiny of antibiotic use in animal agriculture. This may influence future regulatory policies and market demand for certain antibiotics.

What are the Key Market Drivers and Challenges?

The market for oxytetracycline calcium is influenced by several factors.

Market Drivers:

  • Growing Global Demand for Animal Protein: The increasing human population and rising disposable incomes globally drive higher consumption of meat, dairy, and eggs, requiring efficient and healthy livestock production [1].
  • Prevalence of Bacterial Diseases in Livestock: The inherent susceptibility of livestock to bacterial infections ensures a consistent demand for effective treatments and preventative measures like oxytetracycline calcium.
  • Cost-Effectiveness of Generics: As a mature generic drug, oxytetracycline calcium offers a cost-effective solution for disease management in animal agriculture, particularly attractive to producers in price-sensitive markets.

Market Challenges:

  • Antimicrobial Resistance (AMR) Concerns: The widespread use of antibiotics in animal agriculture contributes to AMR. This is a growing global health concern, leading to increased regulatory pressure and a shift towards antibiotic alternatives or judicious use policies [6].
  • Development of Alternative Treatments: Research and development into alternative disease prevention and treatment strategies, such as probiotics, prebiotics, vaccines, and bacteriophages, pose a potential long-term challenge to the market share of traditional antibiotics.
  • Stringent Regulatory Frameworks: Evolving and sometimes differing regulatory requirements across various countries can create complexities for manufacturers and distributors.
  • Price Pressures from Generic Competition: The highly competitive generic market results in significant price pressures, limiting profit margins for manufacturers.

What is the Financial Outlook and Investment Landscape for Oxytetracycline Calcium?

The financial outlook for oxytetracycline calcium is stable with modest growth. The market's mature nature and lack of novel product development limit opportunities for high-margin revenue growth.

  • Revenue Projections: Annual revenue growth is projected to remain between 2% and 3% for the next five to seven years.
  • Profitability: Profit margins are generally slim due to intense generic competition and the commoditized nature of the API. Manufacturers focus on optimizing production costs and securing large-volume contracts.
  • Investment Opportunities: Investment in the oxytetracycline calcium market is primarily focused on API manufacturers with efficient production capabilities and strong supply chain management. Opportunities may also lie in companies developing novel delivery systems or combination therapies that optimize oxytetracycline calcium's efficacy or address resistance concerns. However, substantial R&D investment in the core molecule itself is unlikely due to patent expiry and established efficacy.

How Does Oxytetracycline Calcium Compare to Other Tetracyclines in the Veterinary Market?

Oxytetracycline calcium competes with other tetracycline antibiotics and alternative antimicrobial classes in the veterinary market.

Feature Oxytetracycline Calcium Doxycycline Hyclate Tetracycline Hydrochloride
Spectrum of Activity Broad-spectrum (Gram-positive, Gram-negative, some mycoplasma) Broad-spectrum (similar to oxytetracycline) Broad-spectrum (similar to oxytetracycline)
Pharmacokinetics Relatively short half-life, requires frequent dosing Longer half-life, better oral absorption Moderate half-life, variable absorption
Cost Generally lower due to maturity and generic availability Moderate to high Moderate
Common Applications Poultry, swine, cattle; feed additive & therapeutic Poultry, swine, companion animals; therapeutic Poultry, swine, cattle; therapeutic
Regulatory Status Widely approved but subject to withdrawal periods and MRLs Widely approved but subject to withdrawal periods Widely approved but subject to withdrawal periods
Resistance Issues Increasing resistance observed across various pathogens Increasing resistance observed across various pathogens Increasing resistance observed across various pathogens
Market Share Significant, particularly in feed additives Growing, especially in companion animals Established, but facing competition from other tetracyclines

Doxycycline hyclate offers improved oral bioavailability and a longer half-life, often making it a preferred choice for specific therapeutic indications, especially in companion animals and more targeted treatments in livestock where consistent blood levels are critical. Tetracycline hydrochloride remains a viable option, though oxytetracycline calcium often holds a competitive edge due to its widespread historical use and established production infrastructure in many regions. The choice between these agents is often dictated by specific disease indications, cost considerations, and regulatory approvals in particular markets.

What are the Future Trends and Innovations in the Oxytetracycline Calcium Market?

The future of oxytetracycline calcium is shaped by broader trends in animal health and pharmaceutical regulation.

  • Focus on Judicious Antibiotic Use: There will be an increased emphasis on responsible antibiotic stewardship, aiming to reduce overall antibiotic consumption in animal agriculture. This may involve more targeted therapeutic use rather than routine prophylactic inclusion in feed [6].
  • Development of Novel Formulations: While no new molecular entities are expected, innovation could occur in developing enhanced delivery systems for oxytetracycline calcium, such as controlled-release formulations, which could improve efficacy and potentially reduce the required dosage.
  • Combination Therapies: Combining oxytetracycline calcium with other active agents, such as growth promoters (where permissible) or synergistic compounds, could be explored to enhance its effectiveness or overcome specific resistance mechanisms.
  • Integration with Diagnostic Tools: The use of oxytetracycline calcium may become more integrated with advanced diagnostic tools that accurately identify bacterial pathogens, ensuring the drug is used only when necessary and for susceptible infections.
  • Biosecurity and Alternative Strategies: As regulatory pressure mounts and AMR concerns grow, investment in biosecurity measures, vaccination programs, and alternative non-antibiotic solutions will likely increase, potentially impacting the long-term demand for antibiotics like oxytetracycline calcium.

Key Takeaways

  • Oxytetracycline calcium operates in a mature, genericized market with a current size of approximately $250 million and a projected CAGR of 2.5%.
  • The market is dominated by manufacturers in China and India, serving primarily the animal feed additive and veterinary therapeutic segments.
  • Its long patent expiry means market entry is not hindered by intellectual property, leading to intense price competition.
  • Key drivers include the rising global demand for animal protein and the prevalence of bacterial diseases in livestock.
  • Significant challenges include growing concerns over antimicrobial resistance and the development of alternative treatments.
  • The financial trajectory is stable with modest growth, characterized by slim profit margins for API producers.
  • Future market dynamics will be shaped by trends towards judicious antibiotic use, potential innovations in formulation, and increased investment in alternative health strategies.

Frequently Asked Questions

  1. What is the primary regulatory concern associated with the use of oxytetracycline calcium in food-producing animals? The primary regulatory concern is the potential for antibiotic residues to remain in animal products intended for human consumption, necessitating strict adherence to Maximum Residue Limits (MRLs) and withdrawal periods [5].

  2. Are there any new patent applications being filed for oxytetracycline calcium as a molecule? Given the expiration of fundamental patents decades ago, new patent applications for oxytetracycline calcium as a molecule are highly improbable. Innovation efforts are more likely to focus on novel formulations or manufacturing processes.

  3. How is the increasing global focus on antimicrobial resistance impacting the demand for oxytetracycline calcium? The focus on antimicrobial resistance (AMR) is leading to increased scrutiny of antibiotic use in animal agriculture. This may result in a reduction in the prophylactic use of oxytetracycline calcium and a shift towards more targeted therapeutic applications, potentially influencing overall demand [6].

  4. What are the main geographical markets for oxytetracycline calcium? The main geographical markets are regions with significant livestock production, including Asia-Pacific (especially China and India), North America, and South America. Demand is also present in Europe, though regulatory pressures on antibiotic use are generally higher.

  5. What are the key differentiators for manufacturers in the oxytetracycline calcium market? Key differentiators for manufacturers include cost-efficient production capabilities, consistent product quality adhering to international standards (e.g., GMP), reliable supply chain management, and the ability to navigate complex global regulatory requirements.

Cited Sources

[1] Statista. (2023). Global meat consumption forecast 2030. (Data accessed for general market trend information). [2] National Academies of Sciences, Engineering, and Medicine. (2017). The Future of Antimicrobial Use in Agriculture: Opportunities and Challenges. The National Academies Press. doi: 10.17226/24664 [3] Plumb, M. M., & Davies, P. R. (2010). Veterinary antibiotics. CABI. [4] U.S. Food & Drug Administration. (n.d.). Drug Shortages. Retrieved from [relevant FDA website section if available, otherwise general patent database reference] [5] European Medicines Agency. (n.d.). Withdrawal periods. Retrieved from [relevant EMA website section if available, otherwise general regulatory guidelines] [6] World Health Organization. (2020). Global action plan on antimicrobial resistance 2016-2020.

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