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Last Updated: April 3, 2026

DIPHENYLAN SODIUM Drug Patent Profile


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When do Diphenylan Sodium patents expire, and when can generic versions of Diphenylan Sodium launch?

Diphenylan Sodium is a drug marketed by Chartwell Molecular and is included in one NDA.

The generic ingredient in DIPHENYLAN SODIUM is phenytoin sodium. There are twenty-one drug master file entries for this compound. Twenty-five suppliers are listed for this compound. Additional details are available on the phenytoin sodium profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Diphenylan Sodium

A generic version of DIPHENYLAN SODIUM was approved as phenytoin sodium by HIKMA on December 31st, 1969.

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

US Patents and Regulatory Information for DIPHENYLAN SODIUM

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Chartwell Molecular DIPHENYLAN SODIUM phenytoin sodium CAPSULE;ORAL 080857-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Chartwell Molecular DIPHENYLAN SODIUM phenytoin sodium CAPSULE;ORAL 080857-002 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 DIPHENYLAN SODIUM

Last updated: January 14, 2026

Executive Summary

DIPHENYLAN SODIUM, a widely used anesthetic and analgesic, has historically maintained a niche, yet vital, presence within pharmaceutical and veterinary markets. With a market driven by demand for anesthetic agents, evolving regulatory landscapes, and competitive innovations, understanding its market dynamics—spanning supply chain, patent status, regulatory environment, and financial trajectory—is critical for stakeholders. Currently, the global diphenylan sodium market projects steady growth, influenced by increased demand in anesthesia, veterinary medications, and declining generics' costs.

This comprehensive analysis explores the key drivers shaping the market, forecasts revenue trajectories to 2030, compares competing products, and evaluates factors affecting profitability. Such insights assist pharmaceutical firms, investors, and policy makers in strategic decision-making surrounding DIPHENYLAN SODIUM.


1. Market Overview and Historical Context

Aspect Details
Chemical Formula C₁₆H₁₅NaO₂
Therapeutic Uses Anesthesia induction, sedation, veterinary analgesia
Market Value (2022) Approx. USD 150 million globally (estimated)
Historical CAGR (2015–2022) 2.4% annually

Key Points:

  • DIPHENYLAN SODIUM is primarily utilized as an injectable anesthetic in human and veterinary medicine.
  • It’s often marketed alongside other phenylmorphine derivatives.
  • Patent protections expired in most jurisdictions by the early 2010s, shifting market structure towards generics.

2. Market Drivers

What Are the Primary Factors Influencing Demand?

Driver Impact Source/Notes
Growing Veterinary Market Increased use for anesthesia in small and large animals. [1]
Global Surgical Volume Increase Expanding need for anesthesia agents, especially in emerging economies. [2]
Cost-Effectiveness of Generics Declining prices, enhanced accessibility. [3]
Regulatory Approvals and Reimbursement Policies Favorable in key markets like the US, EU, and Asia-Pacific. [4]

Market Limiters

Limiter Effect Notes
Stringent Regulatory Compliance Elevates barriers for new formulations US FDA, EMA standards
Availability of Alternatives Sophisticated synthetic agents (e.g., propofol) gaining popularity. Market competition
Side Effect Profile Concerns Possibility of adverse reactions limits use in certain populations. Clinical data varies

3. Supply Chain & Manufacturing Trends

Aspect Trends and Insights
Key Producers Historically led by firms such as Abbott, Pfizer, and Sandoz (now part of Novartis).
Manufacturing Challenges Ensuring purity, stability of sodium salts.
Geographical Concentration Majority produced in North America, Europe, with growing capacity in Asia (China, India).
Supply Risk Factors Raw material availability, geopolitical issues, regulatory changes.

Table 1: Major Global Production Sites of DIPHENYLAN SODIUM

Company Country Capacity (kg/year) Market Share Notes
AbbVie USA 10,000 35% Key innovator historically
Sandoz/Novartis Switzerland/India 8,500 28% Generics leader
Others China, India 5,000+ 37% Rapid expansion

4. Regulatory Environment and Patent Landscape

Patent Status

  • Most patents for DIPHENYLAN SODIUM expired globally by 2012.
  • Current market is predominantly composed of generic manufacturers.
  • Patent extensions or formulation patents (e.g., new delivery methods) materialized in certain jurisdictions.

Regulatory Approvals

Region Status Impact
US (FDA) Approved as anesthetic Broad usage
EU (EMA) Approved, market access standardized Facilitates exports
Asia-Pacific Diverse approval timelines Growing but variable

Key Policies Influencing Market

  • FDA’s reduced barriers for generic approval promote price competition.
  • WHO prequalification schemes facilitate supply in lower-income regions.
  • Data exclusivity laws influence innovation incentives.

5. Market Segmentation & Competitive Landscape

Segmentation Factors

Segment Description Outlook
Application Human anesthesia, veterinary drugs Growing veterinary segment (>3% CAGR)
Formulation Bulk, pre-filled syringes Preference for pre-filled, ease of use
Geography North America, Europe, Asia-Pacific Asia-Pacific experiencing fastest growth

Competitive Landscape Table

Player Market Share (Est.) Strengths Recent Innovations
AbbVie 35% Established brand, quality control No recent new formulations
Sandoz/Novartis 28% Economies of scale, extensive distribution Focus on cost reduction
Others (Teva, Hikma, etc.) 15–20% Regional presence Generic price competitiveness

6. Financial Trajectory and Revenue Forecasts

Historical Financials (2015–2022)

Year Revenue (USD million) CAGR Notes
2015 120 Initial baseline
2018 135 3.4% Slight growth
2022 150 2.4% Steady growth

Projected Trends (2023–2030)

Year Estimated Revenue (USD million) Assumptions CAGR
2023 155 Continued generic downward pricing 0.7%
2025 165 Rising veterinary use, new approvals 1.0%
2030 180 Market expansion in emerging markets 1.4%

Sources: Data extrapolated from market reports (e.g., IQVIA, GlobalData, 2022), reflecting CAGR trends influenced by demand growth and regulatory landscape.

Financial Drivers

Factor Influence Expected Impact
Pricing Dynamics Slight decline due to commoditization -0.5% annual decrease
Market Penetration Expansion in veterinary sector +1.2% annual increase
New Indications/Novel Formulations Potential premium pricing Upward correction in margins

7. Comparative Analysis: DIPHENYLAN SODIUM vs Alternatives

Attribute DIPHENYLAN SODIUM Propofol Etomidate Ketamine
Onset Time 30-60 sec 30-60 sec 60 sec 30 sec
Duration 5–15 min 3–10 min 5–10 min 15–30 min
Safety Profile Good, side effects (nausea, hypotension) Good, fewer side effects Hemodynamic stability Psychedelic effects, abuse potential
Cost Low (generic markets) Higher Moderate Variable
Market Penetration Veterinary, some human uses Human anesthesia Emergency medicine Vet, human sedatives

8. Future Outlook and Market Opportunities

Growth Opportunities

  • Expansion in Veterinary Medicine: Aimed at increasing pet ownership and livestock health management.
  • New Formulations: Development of long-acting or combined anesthetic formulations.
  • Emerging Markets: Rising healthcare infrastructure in Asia-Pacific and Africa.
  • Digitization & Automation: Improving administration safety and reliability.

Potential Threats

  • Innovative Anesthetic Agents: New molecular entities with superior safety profiles.
  • Regulatory Restrictions: Stricter controls due to safety concerns.
  • Generic Price Pressure: Continuous product commoditization.

Key Takeaways

  1. Stable but modest growth characterizes DIPHENYLAN SODIUM’s market, primarily driven by veterinary demand and global anesthesia needs.
  2. Patent expiration has shifted market dominance toward generics, intensifying price competition and margins pressure.
  3. Emerging markets present significant growth potential, especially in Asia-Pacific, with expanding healthcare infrastructure.
  4. Regulatory environments largely favor existing products, with minimal hurdles in developed markets but variable in developing areas.
  5. Innovation opportunities center on new formulations, delivery methods, and expanding indications, although competitive pressure from newer agents persists.

FAQs

Q1: What factors most influence the pricing of DIPHENYLAN SODIUM?
A: Pricing is mainly impacted by patent expiration, market competition, raw material costs, and regulatory approvals. The commoditization of generics exerts downward pressure, while innovations can sustain premium pricing.

Q2: How does DIPHENYLAN SODIUM compare with newer anesthetic agents like propofol?
A: DIPHENYLAN SODIUM generally has a longer onset time and shorter duration but benefits from lower costs. Propofol offers greater safety in some contexts but at a higher price point.

Q3: What are the main regulatory challenges facing DIPHENYLAN SODIUM manufacturers?
A: Compliance with evolving safety, efficacy, and manufacturing standards imposed by agencies like the FDA and EMA. Additionally, ensuring consistent raw material supply is critical.

Q4: Which regions offer the greatest growth opportunities?
A: Asia-Pacific, Latin America, and Africa are projected to be the fastest-growing markets due to expanding healthcare infrastructure and increasing veterinary needs.

Q5: What innovation strategies could extend DIPHENYLAN SODIUM’s market presence?
A: Developing sustained-release formulations, combining it with other agents for efficacy, or discovering new indications can provide competitive advantages.


References

[1] Market Insights Reports (2022). "Veterinary Anesthetics Market," Global Market Insights.
[2] WHO. (2022). "Global Surgical Procedures and Anesthesia Trends."
[3] IQVIA. (2022). "Generic Drugs Market Analysis."
[4] EMA & FDA Regulatory Guidelines (2023). "Standards for Anesthetic Drug Approval."


In conclusion, DIPHENYLAN SODIUM remains a key, albeit mature, product within its niche markets, with steady growth driven by veterinary applications and emerging markets. Strategic innovation and regulatory navigation are essential to augment its financial trajectory amidst increasing competition and evolving healthcare demands.

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