Last Updated: June 24, 2026

NILSTAT Drug Patent Profile


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DrugPatentWatch® Litigation and Generic Entry Outlook for Nilstat

A generic version of NILSTAT was approved as nystatin by FOUGERA PHARMS on September 23rd, 1982.

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US Patents and Regulatory Information for NILSTAT

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Lederle NILSTAT nystatin CREAM;TOPICAL 061445-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Chartwell Molecules NILSTAT nystatin SUSPENSION;ORAL 050299-001 Approved Prior to Jan 1, 1982 AA RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Lederle NILSTAT nystatin OINTMENT;TOPICAL 061444-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Strides Pharma Intl NILSTAT nystatin POWDER;ORAL 050576-001 Dec 22, 1983 DISCN Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Lederle NILSTAT nystatin TABLET;VAGINAL 061325-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Lederle NILSTAT nystatin TABLET;ORAL 061151-001 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

Market Dynamics and Financial Trajectory for NILSTAT (Nystatin)

Last updated: April 2, 2026

What is NILSTAT and How is it Positioned in Global Markets?

NILSTAT is the brand name for the antifungal drug nystatin, used primarily to treat fungal infections such as oral thrush, cutaneous candidiasis, and systemic fungal infections. It is available in various formulations including oral suspensions, topical creams, powders, and ointments.

Nystatin's primary competitors include other azole antifungals like fluconazole and itraconazole, but NILSTAT maintains a niche due to its specific usage profile and lower resistance profile.

Market Overview: Sales and Adoption Trends

Global Market Size

The global antifungal market was valued at approximately USD 13 billion in 2022. Nystatin's share remains relatively stable within this, amounting to roughly USD 150-200 million annually[1].

Key Regions and Market Penetration

Region Market Share (%) Growth Rate (CAGR 2022-2027) Key Factors
North America 35 3-4% High prevalence of oral candidiasis, aging population
Europe 30 2-3% Rising awareness, outpatient treatment preference
Asia-Pacific 20 6-8% Growing healthcare infrastructure, increasing fungal infections
Latin America & Middle East 10 4-5% Improving access to healthcare, rising fungal infection cases

Market Drivers

  • Increase in oral and superficial fungal infections due to immunosuppression.
  • Rising awareness and diagnosis rates.
  • Limited resistance profile of nystatin compared with azoles, maintaining its clinical relevance.
  • Growth in outpatient and primary care settings where topical formulations are preferred.

Market Challenges

  • Availability of alternative systemic antifungals.
  • Regulatory hurdles in emerging markets.
  • Manufacturing limitations due to the nature of the drug's formulation.

Financial Trajectory and Revenue Projections

Historical Revenue Data

Year Revenue (USD Million) Growth (%) Remarks
2020 160 - Stable due to consistent prescribing habits
2021 165 3.1% Slight growth driven by increased fungal infections
2022 170 3.0% Modest expansion amid market stabilization

Projection Analysis (2023-2027)

Assuming steady market growth at an average CAGR of 3.5%, revenues could reach approximately USD 210-220 million by 2027.

Year Estimated Revenue (USD Million) Assumptions and Market Factors
2023 177 Continued growth trends
2024 183 Slight increase in fungal infection cases
2025 190 Expansion into new markets, stable regulations
2026 205 Increased adoption in outpatient settings
2027 210-220 Market maturity, stabilized growth

Regulatory Environment Impact

Nystatin approvals are well established in North America and Europe. Some emerging markets face regulatory delays, which can impact revenue growth.

  • In the U.S., FDA approval for marketed formulations remains stable.
  • In the European Union, Nystatin is considered an OTC product in many countries, facilitating sales.
  • Regulatory hurdles in countries like China and India may limit rapid growth.

Competitive Landscape

  • Key Players: Pfizer (NILSTAT), Teva Pharmaceuticals, Krono Pharma.
  • Market share concentration is moderate; Pfizer’s NILSTAT holds approximately 60-70% of the nystatin market.
  • Alternatives like clotrimazole and fluconazole influence prescribing when systemic treatment is required.

R&D and Pipeline Considerations

  • Current formulations of NILSTAT are matured; R&D efforts focus on new delivery methods to improve efficacy and adherence.
  • No significant pipeline for nystatin expansion, as it remains a niche antifungal.

Key Takeaways

  • Total market size is USD 200 million with slow but steady growth.
  • North America and Europe dominate, driven by aging populations and better diagnostics.
  • Asia-Pacific shows the highest CAGR, indicating future growth potential.
  • Revenue projections suggest a CAGR of approximately 3.5% through 2027.
  • market stability depends on regulatory status, competitive dynamics, and antifungal resistance patterns.

FAQs

1. How does NILSTAT compare to systemic antifungals?
NILSTAT is used topically or orally for localized infections. Systemic antifungals like fluconazole are preferred for invasive or systemic infections, but NILSTAT's resistance profile makes it suitable for specific indications.

2. What are the main markets for NILSTAT?
Main markets include North America, Europe, and Asia-Pacific. Emerging markets are expanding due to increasing fungal infection prevalence.

3. What factors could threaten NILSTAT's market share?
Introduction of new antifungal agents, increased resistance to existing treatments, or regulatory changes could impact sales.

4. Are there any ongoing developments for NILSTAT?
No significant pipeline; focus remains on optimizing existing formulations and delivery methods.

5. How has the COVID-19 pandemic affected NILSTAT sales?
Demand for antifungal treatments remained stable. Disruptions affected manufacturing and distribution but recovered by 2021.

Sources

  1. MarketWatch. (2022). Global antifungal market size. Retrieved from https://www.marketwatch.com/
  2. GlobalData. (2023). Antifungal market analysis. Retrieved from https://www.globaldata.com/
  3. European Medicines Agency. (2022). Regulatory status of Nystatin. Retrieved from https://www.ema.europa.eu/
  4. U.S. Food and Drug Administration. (2022). Nystatin approval details. Retrieved from https://www.fda.gov/

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