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Last Updated: December 18, 2025

KEFZOL Drug Patent Profile


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When do Kefzol patents expire, and what generic alternatives are available?

Kefzol is a drug marketed by Acs Dobfar and Lilly and is included in two NDAs.

The generic ingredient in KEFZOL is cefazolin sodium. There are twenty-seven drug master file entries for this compound. Nineteen suppliers are listed for this compound. Additional details are available on the cefazolin sodium profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Kefzol

A generic version of KEFZOL was approved as cefazolin sodium by SANDOZ on December 9th, 1988.

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Summary for KEFZOL
Drug patent expirations by year for KEFZOL
Recent Clinical Trials for KEFZOL

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SponsorPhase
Melbourne HealthPhase 3
University of MalayaPhase 3
Changi General HospitalPhase 3

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US Patents and Regulatory Information for KEFZOL

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Acs Dobfar KEFZOL cefazolin sodium INJECTABLE;INJECTION 061773-003 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Lilly KEFZOL cefazolin sodium INJECTABLE;INJECTION 062557-001 Sep 10, 1985 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Acs Dobfar KEFZOL cefazolin sodium INJECTABLE;INJECTION 061773-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Acs Dobfar KEFZOL cefazolin sodium INJECTABLE;INJECTION 061773-004 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Acs Dobfar KEFZOL cefazolin sodium INJECTABLE;INJECTION 061773-005 Sep 8, 1987 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Lilly KEFZOL cefazolin sodium INJECTABLE;INJECTION 062557-002 Sep 10, 1985 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Acs Dobfar KEFZOL cefazolin sodium INJECTABLE;INJECTION 061773-002 Approved Prior to Jan 1, 1982 DISCN 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

Market Dynamics and Financial Trajectory for KEFZOL

Last updated: July 29, 2025

Introduction

KEFZOL, a pharmaceutical agent developed as an advanced antibiotic, has garnered increasing attention within the healthcare sector. Its formulation, indications, and competitive landscape influence its market trajectory significantly. This report dissects the market forces, regulatory environment, patent status, and commercial prospects shaping KEFZOL’s growth prospects, providing business professionals with a strategic outlook.

Product Profile and Therapeutic Indications

KEFZOL, primarily composed of cefazolin, is a first-generation cephalosporin antibiotic. It targets susceptible bacterial infections, including postoperative wound infections, urinary tract infections, and skin and soft tissue infections. Its broad-spectrum efficacy, favorable safety profile, and cost-effectiveness make it a staple in both hospital and outpatient settings.

Market Landscape

Global and Regional Demand

The global antibiotics market is projected to reach USD 52.5 billion by 2027, growing at a CAGR of 3.8% (Grand View Research, 2022). KEFZOL’s market penetration is predominantly in North America, Europe, and parts of Asia-Pacific, driven by rising bacterial resistance, demographic shifts, and expanding healthcare infrastructure.

Competitive Ecosystem

KEFZOL faces competition from off-patent generics and branded counterparts, such as Ancef (cefazolin by Allergan), and newer broad-spectrum antibiotics like ceftaroline which appraise efficacy against resistant strains. The generic segment’s dominance exerts pricing pressure, challenging profit margins but expanding access.

Healthcare Policy and Antibiotic Stewardship

Stringent regulatory policies and antibiotic stewardship programs influence KEFZOL’s prescribing trends. Governments and healthcare institutions prioritize appropriate antibiotic usage to combat antimicrobial resistance (AMR), thereby impacting volume sales of certain antibiotics, including KEFZOL.

Regulatory and Patent Considerations

Patent Status and Lifecycle

KEFZOL’s patent protections have likely expired or are nearing expiration, typical for antibiotics developed in previous decades. Patent expiry precipitates market genericization, eroding exclusivity and compressing profit margins. Companies may seek to maintain market share via new formulations, combination therapies, or extending indications through regulatory filings.

Regulatory Approvals and Submissions

Ongoing or recent regulatory approvals for expanded indications or new formulations enhance KEFZOL’s commercial viability. For instance, approval for pediatric use or injectable formulations can open additional revenue streams. Conversely, regulatory hurdles relating to safety profiles or manufacturing standards can delay or restrict market access.

Financial Trajectory and Revenue Projections

Revenue Drivers

  • Market Penetration: Expanding use in hospital settings for surgical prophylaxis and infection management is central.
  • Pricing Strategies: As a generic drug, KEFZOL’s pricing is sensitive to market competition. Tiered or value-based pricing models could influence revenue.
  • Geographic Expansion: Penetration into emerging markets with increasing healthcare expenditure offers substantial growth potential.

Cost Factors

Manufacturing costs for beta-lactam antibiotics are relatively low, driven by high-volume production. However, costs linked to compliance with regulatory standards, quality assurance, and marketing impact net margins.

Forecasting Models

Based on current demand, competitive prices, and emerging markets, KEFZOL’s annual revenues are expected to stabilize post-patent expiry, with potential growth of 2-4% in mature markets due to volume increases. In emerging markets, annual growth rates could reach 6-8% owing to increasing hospital capacities and infection rates.

Market Risks and Challenges

  • Antimicrobial Resistance: Rising resistance among bacteria diminishes efficacy, requiring formulation modifications or combination therapies.
  • Regulatory Barriers: Stringent approval processes and variable regional standards can delay expansion.
  • Pricing Pressures: Government tariffs, reimbursement policies, and generic competition threaten profit margins, particularly in price-sensitive markets.

Strategic Opportunities

  • Formulation Innovation: Development of long-acting or combined formulations to extend product life cycle.
  • Indication Expansion: Pursuing regulatory approval for new infection indications, including resistant strains.
  • Partnership Development: Collaborations with biotech firms for strategic research initiatives, patent extensions, or market access.

Market Risks and Competitive Dynamics

The antibiotic market is saturated with low-margin generics, intensifying competition. Moreover, global initiatives to curb unnecessary antibiotic use mean volume growth may plateau if stewardship initiatives intensify. Resistance evolution also threatens to diminish KEFZOL’s clinical utility unless adaptive strategies are implemented.

Conclusion

KEFZOL's market trajectory hinges on lifecycle management, regulatory navigation, market expansion, and addressing antimicrobial resistance. While its core is challenged by generic competition and resistance issues, strategic investments in formulation development and indication expansion can improve its long-term financial outlook. Industry players must monitor evolving policies and resistance patterns to capture and sustain market share.


Key Takeaways

  • KEFZOL remains a foundational antibiotic with stable demand but faces challenges from generic competition and resistance trends.
  • Patent expirations necessitate diversification strategies, including new formulations or indications, to sustain profitability.
  • Emerging markets and hospital-based use provide growth opportunities, contingent upon pricing and regulatory success.
  • Antibiotic stewardship programs, while promoting responsible use, exert downward pressure on volume growth.
  • Strategic partnerships and innovation are critical to extending KEFZOL’s market relevance amid evolving healthcare dynamics.

FAQs

1. How does patent expiry impact KEFZOL’s market share and profitability?
Patent expiry typically leads to generic entry, increasing competition and lowering prices, which diminish profit margins and market exclusivity. Companies may offset this by developing new formulations or seeking regulatory approval for expanded indications to sustain revenues.

2. What role does antimicrobial resistance play in KEFZOL’s future market prospects?
Rising resistance among target bacteria reduces KEFZOL’s clinical efficacy, potentially narrowing its indications. To mitigate this, companies might explore combination therapies or develop formulations targeting resistant strains, thus preserving market relevance.

3. Are there regulatory pathways available to extend KEFZOL’s market life?
Yes. Pursuing new indications, developing novel formulations (e.g., long-acting injectables), or demonstrating efficacy against resistant bacteria can secure regulatory approvals, thereby extending its market lifecycle.

4. How can KEFZOL capitalize on emerging markets?
By establishing local manufacturing, tailoring pricing strategies, and obtaining approvals for expanded indications, KEFZOL can penetrate markets with rising infection burdens and expanding healthcare infrastructure, generating additional growth.

5. What strategic steps should pharmaceutical companies consider for KEFZOL’s sustainability?
Focus on formulation innovation, indication expansion, strategic partnerships, and geographic diversification. Additionally, engaging in antimicrobial stewardship aligns with health authority policies, ensuring KEFZOL remains a relevant therapeutic option.


Sources:

[1] Grand View Research. (2022). Antibiotics Market Size, Share & Trends Analysis Report.
[2] World Health Organization. (2021). Antimicrobial Resistance Global Report.

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