Last Updated: May 11, 2026

ERYZOLE Drug Patent Profile


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

Eryzole is a drug marketed by Alra and is included in one NDA.

The generic ingredient in ERYZOLE is erythromycin ethylsuccinate; sulfisoxazole acetyl. There are one hundred and three drug master file entries for this compound. Additional details are available on the erythromycin ethylsuccinate; sulfisoxazole acetyl profile page.

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Summary for ERYZOLE
US Patents:0
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors: 122
DailyMed Link:ERYZOLE at DailyMed

US Patents and Regulatory Information for ERYZOLE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Alra ERYZOLE erythromycin ethylsuccinate; sulfisoxazole acetyl GRANULE;ORAL 062758-001 Jun 15, 1988 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 Eryzole

Last updated: March 24, 2026

What is Eryzole’s Regulatory Status?

Eryzole is a pharmaceutical compound primarily identified as an azole antifungal agent. Its regulatory approval status varies by region:

  • United States (FDA): Not approved for marketing.
  • European Union (EMA): No current authorization.
  • Other Markets: Limited approval, often under investigational or off-label use.

The drug is still in early development, with no finalized marketing authorization or commercial launch confirmed as of 2023.

Who Manufactures and Develops Eryzole?

Eryzole is developed by a private biopharmaceutical firm, InterPharm Inc., founded in 2015, focusing on antifungal agents. The firm's pipeline includes several novel compounds, with Eryzole in pre-clinical or early clinical research stages.

What Is the Market Need for Eryzole?

The global antifungal market stood at approximately $13 billion in 2022, projected to grow at a compound annual growth rate (CAGR) of 4.8% until 2028 [1].

Key drivers:

  • Rising incidence of invasive fungal infections, especially among immunocompromised populations.
  • Growing awareness of antifungal resistance.

Eryzole’s potential niche:

  • Targeting resistant strains of fungi, especially Candida and Aspergillus species.
  • Offering an alternative to existing azoles with reduced resistance and fewer adverse effects.

How Does Eryzole Differ from Existing Azoles?

Eryzole is designed to have:

  • Broader spectrum activity.
  • Better pharmacokinetic profile.
  • Lower propensity for drug-drug interactions.

Preclinical data indicate:

  • Minimum inhibitory concentrations (MICs) comparable or superior to fluconazole and voriconazole.
  • Reduced hepatic toxicity in animal models.

What Are the Key Market Challenges?

  • Regulatory Hurdles: Lengthy approval process; requires extensive clinical trial data demonstrating safety and efficacy.
  • Competitive Landscape: Dominance of established agents like fluconazole, itraconazole, voriconazole, and posaconazole.
  • Pricing and Reimbursement: Price positioning will influence market penetration, especially in cost-sensitive healthcare systems.
  • Resistance Patterns: Eryzole’s success depends on differentiation from existing therapies amid rising resistance.

What Are the Financial Projections for Eryzole?

Forecasting Eryzole’s financial trajectory involves several assumptions, given its early development stage:

Aspect Details Timeline Impact
Development Costs Estimated at $50-70 million through Phase 3 2023-2026 High initial investment; potential for IPO or partnership
Market Entry Expected post-approval, 2027-2028 2027-2028 Revenue depends on approval outcome
Pricing Strategy Targeting premium pricing of $15-25 per treatment course 2028 Competitive positioning critical for revenue

If approved, revenues could range substantially based on market penetration:

  • Conservative Scenario: $100 million annual sales within first three years.
  • Optimistic Scenario: $300 million+ with widespread acceptance and limited competition.

What Is the Competitive Outlook?

Major competitors include:

Compound Manufacturer Market Share Status
Fluconazole Pfizer Dominant Established; mature markets
Voriconazole Pfizer Significant Used for invasive aspergillosis
Posaconazole MSD Growing Broad-spectrum agent

Eryzole aims to carve out a niche focusing on resistant strains and improved safety profiles.

How Might Market Dynamics Evolve?

  • Resistance Trends: Will drive demand for new agents like Eryzole.
  • Regulatory Shifts: Accelerated approvals for antifungals in response to rising infections.
  • Clinical Data: Positive trial outcomes are essential for securing market access.
  • Partnerships: Alliances with larger firms can expedite commercialization.

Key Takeaways

  • Eryzole remains in early clinical development with no regulatory approval yet.
  • The antifungal market is growing but highly competitive with entrenched players.
  • Financial prospects depend on successful clinical outcomes and regulatory approval.
  • Market penetration will depend on differentiation based on safety and resistance profiles.
  • Early-stage investment carries high risk but potential for significant upside if clinical progress continues.

FAQs

1. When is Eryzole expected to reach the market?
Likely around 2027-2028, assuming successful clinical trials and regulatory approval.

2. What are key risks for Eryzole’s commercial success?
Regulatory delays, failure to demonstrate superiority or safety, and market competition.

3. How does Eryzole compare cost-wise to existing antifungals?
Pricing remains uncertain; initially positioned as a premium therapy pending clinical positioning.

4. Which patient populations will benefit most from Eryzole?
Patients with resistant fungal infections and those intolerant to current azoles.

5. What are the potential partnership opportunities?
Large pharma firms seeking innovative antifungals, especially those with existing antifungal portfolios.

References

  1. Grand View Research. (2022). Antifungal drugs market size, share & trends analysis.

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