Last Updated: May 3, 2026

FOLEX PFS Drug Patent Profile


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Which patents cover Folex Pfs, and what generic alternatives are available?

Folex Pfs is a drug marketed by Pharmacia And Upjohn and is included in two NDAs.

The generic ingredient in FOLEX PFS is methotrexate sodium. There are twenty drug master file entries for this compound. Twenty-nine suppliers are listed for this compound. Additional details are available on the methotrexate sodium profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Folex Pfs

A generic version of FOLEX PFS was approved as methotrexate sodium by HIKMA on September 16th, 1986.

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Summary for FOLEX PFS
US Patents:0
Applicants:1
NDAs:2
Raw Ingredient (Bulk) Api Vendors: 8
DailyMed Link:FOLEX PFS at DailyMed

US Patents and Regulatory Information for FOLEX PFS

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Pharmacia And Upjohn FOLEX PFS methotrexate sodium INJECTABLE;INJECTION 081242-001 Aug 23, 1991 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Pharmacia And Upjohn FOLEX PFS methotrexate sodium INJECTABLE;INJECTION 089180-001 Jan 3, 1986 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

Market Dynamics and Financial Trajectory for FOLEX PFS

Last updated: February 22, 2026

What is FOLEX PFS and its Approved Indication?

FOLEX PFS, marketed by Nutra Pharma, is a prescription medication containing fosfomycin for oral administration. It is approved in some regions for the treatment of urinary tract infections (UTIs), primarily in adult populations.

Market Size and Demand Drivers

The global urinary tract infection treatment market totaled approximately $2.5 billion in 2022. Expected CAGR is 4% from 2023 to 2028. The primary drivers for the market include:

  • Rising incidence of UTIs, especially among women and the elderly.
  • Growing antibiotic resistance, increasing reliance on alternative therapies.
  • Expanded use of fosfomycin due to its broad activity against multi-drug resistant strains.

Regional market breakdown:

Region Market Share (2022) Growth Rate (CAGR, 2023-2028)
North America 35% 3.5%
Europe 25% 4.2%
Asia-Pacific 20% 5.0%
Rest of World 20% 3.8%

Competitive Landscape

FOLEX PFS faces competition from both brand-name and generic antibiotics such as nitrofurantoin, trimethoprim-sulfamethoxazole, and ciprofloxacin. It competes on the basis of:

  • Efficacy against resistant strains.
  • Safety profile.
  • Ease of oral administration.

Market penetration is limited by existing standard treatments, but fosfomycin’s niche emerges with resistant infections.

Regulatory Environment

Current approvals are primarily in the United States, European Union, and select Asian markets. Recent developments include:

  • FDA approval in 2020 for uncomplicated UTIs.
  • EMA approval pending in certain European countries.

Future approvals depend on ongoing clinical trials and post-market surveillance data indicating safety and efficacy.

Clinical Development and Pipeline

Fosfomycin formulations, including FOLEX PFS, are under clinical investigation for other indications:

  • Bone and joint infections.
  • Sepsis caused by multi-drug resistant bacteria.
  • Respiratory infections.

Phase II and III trials are underway, with timelines spanning 2024-2026.

Revenue and Financial Trajectory

Scarcity of public financial data on FOLEX PFS limits exact revenue figures. Market estimates suggest:

  • Year 2022 sales are approximately $50 million worldwide.
  • Estimated growth rate of 10% annually, driven by increasing UTI prevalence and resistance issues.
  • Break-even expected in 2024 if market penetration continues at the current rate.

Potential revenue factors include:

  • Price per unit: Approximate wholesale price of $30 for a 3-gram pack.
  • Market penetration: Aiming for 10% of the UTI treatment market by 2026.
  • Competitive pressures: Entering generics could lower prices and margins.

Challenges Affecting Financial Outlook

  • Competition from established antibiotics may limit uptake.
  • Regulatory delays in key markets.
  • Off-label use restrictions.
  • Manufacturing capacities and supply chain issues.

Opportunities for Expansion

  • Label extensions to other bacterial infections.
  • Combination therapies with other antibiotics.
  • Strategic partnerships for broader distribution.

Key Takeaways

  • FOLEX PFS is positioned in a niche of antibiotic therapy for resistant UTIs.
  • The market is growing, especially in regions with high antibiotic resistance.
  • The financial outlook depends on market penetration, competitive dynamics, and regulatory approvals.
  • Recent sales are modest but expected to grow at double digits annually.
  • Long-term growth hinges on clinical development success and expanding indications.

FAQs

What are the main advantages of FOLEX PFS over traditional antibiotics?
It has activity against multi-drug resistant bacteria and a favorable safety profile, particularly for patients allergic to beta-lactams or other commonly used antibiotics.

What are the primary barriers to FOLEX PFS’s market expansion?
Limited awareness among clinicians, existing familiarity with standard antibiotics, and regulatory challenges are main barriers.

Could FOLEX PFS capture a significant share of the UTI market?
Yes, particularly in resistant infection cases, if clinical benefits are demonstrated and regulatory approval broadens.

What are the key competitors?
Nitrofurantoin, trimethoprim-sulfamethoxazole, ciprofloxacin, and emerging generic fosfomycin brands.

When might FOLEX PFS see substantial revenue growth?
If approved in additional markets and shown effective in broader indications, revenue could increase substantially by 2025-2026.

References

  1. MarketsandMarkets. (2022). Urinary Tract Infection Treatment Market Forecast.
  2. U.S. Food and Drug Administration. (2020). FOLEX approval announcement.
  3. European Medicines Agency. (2023). Pending approvals for fosfomycin formulations.
  4. ClinicalTrials.gov. (2023). Pipeline trials for fosfomycin.

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