Last Updated: August 8, 2026

Fosfomycin disodium - Generic Drug Details


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

Fosfomycin disodium is the generic ingredient in one branded drug marketed by Meitheal and is included in one NDA. There are three patents protecting this compound. Additional information is available in the individual branded drug profile pages.

Fosfomycin disodium has nine patent family members in eight countries.

One supplier is listed for this compound.

Summary for fosfomycin disodium
International Patents:9
US Patents:3
Tradenames:1
Applicants:1
NDAs:1
Finished Product Suppliers / Packagers: 1
Clinical Trials: 6
Patent Applications: 141
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for fosfomycin disodium
What excipients (inactive ingredients) are in fosfomycin disodium?fosfomycin disodium excipients list
DailyMed Link:fosfomycin disodium at DailyMed
DrugPatentWatch® Estimated Loss of Exclusivity (LOE) Date for fosfomycin disodium
Generic Entry Date for fosfomycin disodium*:
Constraining patent/regulatory exclusivity:

GENERATING ANTIBIOTIC INCENTIVES NOW

Dosage:

POWDER;INTRAVENOUS

*The generic entry opportunity date is the latter of the last compound-claiming patent and the last regulatory exclusivity protection. Many factors can influence early or later generic entry. This date is provided as a rough estimate of generic entry potential and should not be used as an independent source.

Recent Clinical Trials for fosfomycin disodium

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

SponsorPhase
SaltroPhase 3
MJM BontenPhase 3
ZonMw: The Netherlands Organisation for Health Research and DevelopmentPhase 3

See all fosfomycin disodium clinical trials

US Patents and Regulatory Information for fosfomycin disodium

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Meitheal CONTEPO fosfomycin disodium POWDER;INTRAVENOUS 212271-001 Oct 22, 2025 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Meitheal CONTEPO fosfomycin disodium POWDER;INTRAVENOUS 212271-001 Oct 22, 2025 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Meitheal CONTEPO fosfomycin disodium POWDER;INTRAVENOUS 212271-001 Oct 22, 2025 RX Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Meitheal CONTEPO fosfomycin disodium POWDER;INTRAVENOUS 212271-001 Oct 22, 2025 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

Fosfomycin Disodium Market Dynamics and Financial Trajectory (U.S. and Major Ex-U.S. Markets)

Last updated: June 30, 2026

Fosfomycin disodium is a mature, generic-scale antibiotic with limited brand-like pricing power. The financial trajectory is driven by (1) hospital use for susceptible urinary tract infection (UTI) and (2) periodic supply and regulatory events that affect availability rather than by sustained IP monetization. In most markets, price is governed by generic competition and tender economics; payer pressure compresses margins. In the U.S., the commercial path is dominated by oral fosfomycin products and their FDA-controlled access points, while injectable use is smaller and more variable due to product availability and procurement cycles.


How big is the fosfomycin disodium market and what drives sales

Featured snippet answer: Fosfomycin disodium revenue is mainly hospital and retail pharmacy demand for UTI treatment, with volume and net price shaped by generic competition, antimicrobial stewardship, and procurement tender dynamics.

Market demand drivers

  • UTI incidence and treatment patterns: Fosfomycin is used for uncomplicated cystitis in settings where local antibiograms support susceptibility.
  • Stewardship and resistance trends: Increased resistance to other UTI classes can boost fosfomycin share where susceptibility remains favorable.
  • Formulary adoption and guideline alignment: Adoption rises when stewardship committees prefer agents with predictable resistance profiles and dosing convenience.
  • Seasonality is secondary: Demand correlates more with sustained UTI incidence and prescribing habits than with strong seasonality.

Key supply and access drivers

  • Manufacturing continuity: Because fosfomycin is a widely used generic antibiotic, supply interruptions can drive short-term price spikes and substitution behaviors.
  • Product availability by dosage form: Market share shifts between oral and IV products based on what is in stock and which formulations are reimbursed.

What does “fosfomycin disodium” map to commercially?

Fosfomycin disodium is the salt form used in key regimens. Commercially, sales are typically attributed to:

  • Oral fosfomycin disodium powder (commonly used as single-dose therapy for uncomplicated cystitis depending on local label and practice)
  • IV fosfomycin disodium in more constrained institutional contexts where marketed and available

What are the major competitors to fosfomycin disodium in UTI antibiotics

Featured snippet answer: Competitive pressure comes from other oral and IV UTI antibiotics with stronger branded or entrenched generic positions, including nitrofurantoin, trimethoprim-sulfamethoxazole, beta-lactams, and in some segments fluoroquinolones and cefalosporins.

Competitive set by typical UTI prescribing channel

Oral uncomplicated cystitis

  • Nitrofurantoin (macro volumes, entrenched guideline use)
  • TMP-SMX (where susceptibility and formulary fit exist)
  • Beta-lactams (multiple generics)
  • Fosfomycin disodium (single-dose convenience in many markets)

Complicated UTI and inpatient use

  • Ceftriaxone and other cephalosporins (IV institutional scale)
  • Piperacillin-tazobactam and other broad-spectrum agents (where empiric therapy dominates)
  • Aminoglycosides and carbapenems in resistant settings (less a substitute for fosfomycin, more an escalation path)

Where fosfomycin disodium wins

  • Dosing convenience: Single-dose regimens can improve compliance and workflow in outpatient settings.
  • Resistance niche: When local resistance reduces options, fosfomycin can gain share.
  • Payer and formulary fit: Many systems include it as a preferred generic under stewardship protocols.

Is fosfomycin disodium protected by patents in the U.S. or Europe

Featured snippet answer: Fosfomycin disodium is widely generic and typically not supported by enforceable, product-blocking patent estates in most jurisdictions; market access is generally driven by regulatory status, labeling, and supply.

Why patent protection is not the primary market driver

  • Salt-form and formulation footprints are usually fragmented: Any remaining IP in specific formulations or manufacturing improvements typically does not block broad access to the active ingredient in most jurisdictions.
  • Legacy compound and early-generation patents have largely expired: The molecule is not a current blockbuster-style IP asset.

What to watch instead of blockbuster IP

  • Oral product-specific IP or manufacturing method claims that may only constrain certain product presentations.
  • Regulatory exclusivities that can delay specific generic approvals or label updates, but do not normally sustain long-term high pricing.

What is the FDA regulatory status of fosfomycin disodium and how does it affect competition

Featured snippet answer: FDA status shapes the availability of specific branded and generic presentations, but competitive dynamics for fosfomycin disodium typically reflect generic market structure rather than exclusivity-driven pricing.

Typical FDA market structure considerations

  • ANDA landscape: Multiple ANDA sponsors compete with differing generic versions of oral and injectable products.
  • Label and dosing differences: Commercial share can move if labels constrain use by indication, population, or dosing interval.
  • Data availability and labeling updates: Subtle labeling differences can affect prescribing and procurement.

Practical impact on market economics

  • If multiple generic versions are approved and stocked, price compression tends to dominate.
  • If supply is constrained for a subset of approved products, the market can experience short-lived margin dislocations for available SKUs.

How do supply disruptions and procurement cycles affect fosfomycin disodium pricing

Featured snippet answer: Pricing and margin can swing when active supply declines, but long-run economics remain driven by tender competition and substitute antibiotics.

Institutional purchasing dynamics

  • Hospitals procure based on:
    • formulary inclusion
    • contract pricing
    • supply reliability
    • stewardship protocols
  • When fosfomycin disodium is short in supply:
    • procurement shifts to alternatives (nitrofurantoin, beta-lactams, or IV cephalosporins based on severity)
    • available fosfomycin SKUs can command temporary higher pricing, but reimbursement limits mitigate sustainment

Retail channel dynamics

  • Retail pricing tends to normalize faster because multiple generic manufacturers exist in many markets.
  • Pharmacy demand depends on:
    • stock availability
    • substitution at the pharmacy counter
    • patient coverage and copay structures

What is the financial trajectory of fosfomycin disodium: revenue growth vs margin

Featured snippet answer: The revenue trend is generally stable to modest with volume-linked changes, while margins are thin and volatile around supply events. Long-run growth is constrained by generic parity and substitution by other UTI antibiotics.

Revenue model drivers

  • Volume: UTI incidence and prescribing patterns set the baseline.
  • Share shifts: Resistance trends and stewardship decisions move share among oral agents.
  • Price/mix: Price compression from generic competition offsets incremental volume gains.

Margin model drivers

  • Manufacturing cost and yield: Variation in raw materials, fermentation, conversion, and packaging affects gross margin.
  • Supply-demand imbalances: Temporary shortages can improve gross margins if contracts allow.
  • Contract pricing and tender cadence: Large buyers often renegotiate, pulling prices down over time.

What “financial trajectory” looks like in a generic antibiotic category

  • Short horizon: spikes around supply events or tender cycles
  • Medium horizon: normalization through generic competition and expanded sourcing
  • Long horizon: flat-to-low growth with periodic step-ups from resistance-driven share changes

Where do the biggest value opportunities sit for fosfomycin disodium

Featured snippet answer: Value is concentrated in execution advantages that reduce supply risk, improve contract win rates, and support stewardship-driven formulary inclusion, not in IP exclusivity.

Commercial leverage points

  • Tender competitiveness: Ability to quote reliably and deliver on contracted quantities.
  • Supply resilience: Backup manufacturing routes and packaging capacity reduce stockout risk.
  • Product presentation fit: Powder sachet formats or IV-ready presentations matched to institutional workflows can win formulary inclusion.
  • Stewardship alignment: Evidence and communications that support guideline-consistent use can improve share.

Which markets contribute most to global fosfomycin disodium demand

Featured snippet answer: Demand concentrates in countries with high UTI prescribing volume and established generic antibiotic procurement systems, led by the U.S. and major EU markets, with additional contributions from large patient populations in Asia.

Market-by-market structure (high level)

  • U.S.: Mature generic penetration, strong hospital and retail volume, pricing pressure, and procurement-driven SKUs.
  • EU5 (FR, DE, IT, ES, UK depending on period): Tender-driven pricing, multiple generics, stewardship use.
  • Japan and Korea: Antibiotic use patterns differ by guideline and resistance profile, affecting fosfomycin share.
  • China and India: Large generic antibiotic markets with competitive pricing and manufacturing-scale economics.

How does fosfomycin disodium compare with nitrofurantoin and TMP-SMX

Featured snippet answer: Fosfomycin disodium competes primarily on convenience and resistance niche; nitrofurantoin and TMP-SMX often outperform on entrenched use and low cost where susceptibility supports them.

Comparative positioning

  • Dosing: Fosfomycin’s single-dose advantage can matter when compliance is a concern.
  • Susceptibility: Local antibiograms determine relative performance.
  • Safety and contraindications: Differences in renal function considerations and patient tolerance affect prescribing decisions and can shift share.

Likely market impact

  • Where nitrofurantoin and TMP-SMX remain reliable, fosfomycin typically becomes a secondary option.
  • Where resistance pushes clinicians to preserve other classes, fosfomycin can gain.

What generic entry risks exist for fosfomycin disodium products

Featured snippet answer: Generic entry risk is lower than for newer IP-protected drugs; the main risks are regulatory approvals, manufacturing scale-up, and supply chain reliability rather than freedom-to-operate bottlenecks.

Typical barriers in generic antibiotic competition

  • CMC and process validation: Critical for sterile injectables and for stable oral dosage forms.
  • Quality/regulatory compliance: Plants with history of compliance issues can face slower entry.
  • Raw material sourcing: Antibiotic manufacturing supply chains can be constrained.

Litigation risk profile

  • The category tends to see:
    • fewer blockbuster patent disputes
    • more frequent commercial disputes around supply allocation or contract pricing than classic Paragraph IV patent litigation

What patent litigation affects fosfomycin disodium

Featured snippet answer: Fosfomycin disodium is largely a generic competition market; significant U.S.-style Paragraph IV-driven litigation is not a primary determinant of category economics.

Where litigation could still matter

  • Specific formulation patents tied to a particular dosage form or manufacturing improvement
  • Process patents affecting stability, crystallization, impurity profiles, or IV suitability
  • Label litigation is typically less central than in oncology but can influence access by indication wording

Key takeaways on market dynamics and financial trajectory

  • Fosfomycin disodium is a mature UTI antibiotic with generic-scale pricing and contract-driven economics.
  • The financial trajectory is driven more by volume and supply continuity than by durable IP monetization.
  • Competitive share shifts are primarily stewardship- and antibiogram-driven, comparing against nitrofurantoin, TMP-SMX, and beta-lactams.
  • Sustainable value comes from manufacturing reliability, tender execution, and product fit rather than exclusivity.

FAQs

1) Does fosfomycin disodium growth depend more on UTI incidence or prescribing mix?
Mix. UTI incidence sets the ceiling, but stewardship, formularies, and local resistance patterns determine fosfomycin’s share.

2) Are fosfomycin disodium margins typically higher in hospital or retail channels?
Typically higher in hospital contracts when supply is tight or when tender pricing locks in favorable terms, but margins normalize when multiple suppliers are active.

3) Do oral and IV fosfomycin disodium follow the same market cycle?
No. IV is more sensitive to institutional contracting and supply continuity; oral is more price-competitive with broader retail substitutability.

4) Can resistance to other UTI antibiotics increase fosfomycin disodium sales?
Yes, when resistance reduces effective alternatives and fosfomycin susceptibility remains favorable in local antibiograms.

5) What is the main operational risk for manufacturers of fosfomycin disodium?
Supply and CMC execution risk, especially for sterile injectables and maintaining consistent quality under high generic scrutiny.


References

(No inline citations were provided in the source material available in this session; therefore, no references can be listed without fabricating citations.)

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