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Last Updated: December 15, 2025

SODIUM SULAMYD Drug Patent Profile


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Which patents cover Sodium Sulamyd, and what generic alternatives are available?

Sodium Sulamyd is a drug marketed by Schering and is included in one NDA.

The generic ingredient in SODIUM SULAMYD is sulfacetamide sodium. There are three drug master file entries for this compound. Eleven suppliers are listed for this compound. Additional details are available on the sulfacetamide sodium profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Sodium Sulamyd

A generic version of SODIUM SULAMYD was approved as sulfacetamide sodium by CHARTWELL RX on October 18th, 1988.

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Summary for SODIUM SULAMYD
Drug patent expirations by year for SODIUM SULAMYD

US Patents and Regulatory Information for SODIUM SULAMYD

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Schering SODIUM SULAMYD sulfacetamide sodium OINTMENT;OPHTHALMIC 005963-002 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Schering SODIUM SULAMYD sulfacetamide sodium SOLUTION/DROPS;OPHTHALMIC 005963-001 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Schering SODIUM SULAMYD sulfacetamide sodium SOLUTION/DROPS;OPHTHALMIC 005963-003 Approved Prior to Jan 1, 1982 DISCN Yes 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 the Pharmaceutical Drug: Sodium Sulfamethoxazole

Last updated: July 28, 2025


Introduction

Sodium Sulfamethoxazole (Sulfamethoxazole, SMX) remains a pivotal antimicrobial agent within the sulfonamide class. Widely utilized in the treatment of bacterial infections, particularly urinary tract infections, respiratory infections, and infectious diarrhea, the compound's market dynamics are shaped by evolving antimicrobial resistance, regulatory landscapes, and emerging therapeutic niches. This report provides an in-depth analysis of the current market landscape and future financial trajectory for Sodium Sulfamethoxazole, emphasizing factors influencing demand, competitive positioning, regulatory considerations, and revenue forecasts.


Market Overview and Demand Drivers

Global Market Size and Key Segments

The global antimicrobial agents market, with a significant share occupied by sulfonamides such as Sodium Sulfamethoxazole, exceeds USD 16 billion as of 2022[^1]. Sodium Sulfamethoxazole primarily features in combination formulations—most notably with Trimethoprim (as co-trimoxazole)—which account for a substantial portion of its sales. This combination is a cornerstone in treating a variety of bacterial infections, especially in regions with high prevalence of resistant strains.

Clinical Applications and Usage Trends

  1. Treatment of Urinary Tract Infections (UTIs): Its efficacy against common uropathogens sustains high demand in both developed and developing countries.
  2. Respiratory Tract Infections: Recent shifts toward broader-spectrum antibiotics have impacted its utilization but remain relevant in outpatient settings.
  3. Infectious Diarrhea and Opportunistic Infections: Particularly in immunocompromised populations, including HIV/AIDS patients.

Drivers of Market Expansion

  • Rising Incidence of bacterial infections: Increasing prevalence of UTIs and respiratory infections sustains baseline demand.
  • Developing World Adoption: The affordability and accessibility of Sulfamethoxazole formulations make them heavily relied upon in low- and middle-income countries.
  • Emerging Use in Combination Therapies: Synergistic formulations with Trimethoprim and other agents enhance therapeutic efficacy, bolstering sales.

Market Challenges and Constraints

Antimicrobial Resistance (AMR)

One of the most significant challenges faced by Sodium Sulfamethoxazole is the rapid emergence of resistance among pathogens such as Escherichia coli and Pseudomonas aeruginosa[^2]. AMR diminishes its clinical utility, prolonging treatment durations and necessitating alternative therapies, thus dampening growth prospects.

Regulatory and Safety Concerns

Sulfamethoxazole's association with adverse effects—including hypersensitivity reactions, Stevens-Johnson syndrome, and hematological abnormalities—have led to tightened regulatory scrutiny in certain markets, impacting approval and market access.

Competition from Broader-Spectrum and Novel Agents

The anti-infective landscape increasingly favors newer antibiotics with broader activity and improved safety profiles, such as carbapenems and fluoroquinolones, reducing reliance on traditional sulfonamides.


Competitive Landscape

Key industry players include Pfizer, MFM Healthcare, and generic manufacturers globally. The commoditized nature of Sulfamethoxazole, primarily in combination formulations, results in intense price competition, particularly in the generic segment. Patent protections are largely expired, with most formulations being off-patent, emphasizing price sensitivity over innovation.

Emerging bioequivalents and local generics dominate the market, especially in Asia-Pacific, Africa, and Latin America, where access and affordability are critical.


Regulatory Environment

Global Regulations

Regulatory agencies, including the U.S. FDA, EMA, and WHO, impose strict safety and quality standards. In regions with high antimicrobial resistance, authorities have implemented stewardship programs that influence prescribing patterns and restrict use.

Impact on Market Dynamics

Stringent regulations and safety concerns can delay market expansion for new formulations, but they also promote generic entry, increasing competitive pressure and reducing pricing margins.


Financial Trajectory and Forecast

Historical Performance

Over the past decade, Sodium Sulfamethoxazole's sales experienced moderate growth, driven by its essential status and widespread generic availability. The CAGR from 2015 to 2022 hovered around 2.5%, reflecting stable demand but limited expansion due to resistance and competition[^3].

Future Outlook (2023-2030)

  • Market Growth Rate: Anticipated CAGR of approximately 2-3%, primarily fueled by emerging markets and expanding use in combination therapies[^4].
  • Revenue Projections: Global revenues are expected to approach USD 2.5 billion by 2030, with regional variations favoring Asia-Pacific and Africa.
  • Key Growth Segments: In addition to traditional indications, niche applications such as prophylaxis in vulnerable populations may introduce incremental revenues.

Factors Influencing Financial Trajectory

  • Antimicrobial Stewardship: Implementation of programs aims to optimize antimicrobial use, potentially restraining volume growth.
  • Development of Resistance: Increasing resistance levels could lead to decreased prescribing and revenues unless new formulations or combinations are developed.
  • Regulatory Changes: Harmonization and tightening of safety standards may impact manufacturing costs and pricing.
  • Emerging Alternatives: Adoption of newer agents with better safety profiles could further constrain market expansion.

Strategic Considerations

  • Focus on Combination Formulations: Maintaining a competitive edge through enhanced combination therapies can sustain market relevance.
  • Market Penetration in Developing Countries: Expanding access strategies in underserved regions offer considerable growth potential.
  • Advancement in Formulation Technology: Developing formulations with improved safety profiles or targeted delivery systems may mitigate resistance and adverse effects.
  • Monitoring Resistance Trends: Continuous microbiological surveillance can guide rational use and positioning within antimicrobial stewardship efforts.

Key Takeaways

  • Sodium Sulfamethoxazole, primarily in combination therapies, maintains a stable but mature market with modest growth prospects.
  • The escalating challenge of antimicrobial resistance and safety concerns are key constraints shaping demand.
  • Developing markets and combination therapies constitute the primary growth avenues, with revenues forecasted to reach approximately USD 2.5 billion by 2030.
  • Strategic investments in formulation innovation and regional market expansion can enhance long-term financial returns.
  • Active engagement with antimicrobial stewardship and regulatory compliance remains critical to sustain market position.

FAQs

1. What are the main therapeutic indications for Sodium Sulfamethoxazole?
It is mainly used to treat urinary tract infections, respiratory infections, and infectious diarrhea, often in combination with Trimethoprim.

2. How does antimicrobial resistance impact Sodium Sulfamethoxazole's market?
Rising resistance among bacteria reduces its clinical efficacy, leading to decreased prescribing and revenue declines, especially in regions heavily affected.

3. Are there ongoing efforts to develop new formulations of Sodium Sulfamethoxazole?
Yes, pharmaceutical companies explore novel combinations and targeted delivery systems to extend its utility and address safety concerns.

4. What are the regulatory hurdles affecting Sodium Sulfamethoxazole?
Safety issues, particularly hypersensitivity reactions, have led to strict regulations; compliance costs affect market entry and continuation.

5. How is the forecast for Sodium Sulfamethoxazole's revenue shaping up for the next decade?
Expected to grow slowly at 2-3% CAGR, with revenues approaching USD 2.5 billion by 2030, driven by emerging markets and combination therapy use.


References

[1] Global Markets Insights. (2022). Antimicrobial agents market size analysis.
[2] World Health Organization. (2021). Global antimicrobial resistance report.
[3] IQVIA. (2022). Pharmaceutical sales data.
[4] MarketResearch.com. (2023). Future trends in antimicrobial therapeutics.

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