Last Updated: May 3, 2026

ELIXOPHYLLIN Drug Patent Profile


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

Elixophyllin is a drug marketed by Forest Labs and Solis Pharms and is included in four NDAs.

The generic ingredient in ELIXOPHYLLIN is theophylline. There are thirty-six drug master file entries for this compound. Twenty-eight suppliers are listed for this compound. Additional details are available on the theophylline profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Elixophyllin

A generic version of ELIXOPHYLLIN was approved as theophylline by RHODES PHARMS on September 1st, 1982.

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Summary for ELIXOPHYLLIN
US Patents:0
Applicants:2
NDAs:4

US Patents and Regulatory Information for ELIXOPHYLLIN

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Forest Labs ELIXOPHYLLIN theophylline CAPSULE;ORAL 085545-001 Jul 31, 1984 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Forest Labs ELIXOPHYLLIN SR theophylline CAPSULE, EXTENDED RELEASE;ORAL 086826-001 Jan 29, 1985 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Forest Labs ELIXOPHYLLIN theophylline CAPSULE;ORAL 083921-001 Jul 31, 1984 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Solis Pharms ELIXOPHYLLIN theophylline SOLUTION, ELIXIR;ORAL 085186-001 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Forest Labs ELIXOPHYLLIN SR theophylline CAPSULE, EXTENDED RELEASE;ORAL 086826-002 Jan 29, 1985 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

Elixophyllin (Theophylline): Investment Scenario, Market Dynamics, and Financial Trajectory

Last updated: February 3, 2026

Summary

Elixophyllin, a brand of theophylline, is a methylxanthine derivative used primarily for the treatment of respiratory diseases such as COPD and asthma. Despite declining global prescriptions due to emerging therapies, its low-cost manufacturing, established clinical profile, and niche market segments sustain its relevance. This analysis presents a comprehensive overview of the current market landscape, investment prospects, key drivers and challenges, and future financial trajectories.


What is Elixophyllin and How Does It Fit in the Respiratory Treatment Market?

Attribute Details
Generic Name Theophylline
Brand Name Elixophyllin
Approved Indications COPD, asthma, bronchospasm
Mechanism of Action Phosphodiesterase inhibition; leading to bronchodilation
Market Status Generic presence; primarily off-patent

Theophylline remains a longstanding choice in respiratory therapy, especially in settings where cost controls or drug availabilities favor older medications.


Market Dynamics

Global Market Size and Growth

  • Market valuation (2022): Estimated at $300 million USD.
  • CAGR (2023–2030): Projected at 2.4%, reflecting slow but steady demand.
  • Key regions: North America (~40%), Europe (~25%), Asia-Pacific (~20%), ROW (~15%).

Market Drivers

Driver Description
Cost-Effectiveness Low-cost alternative to biologics and newer inhalers
Therapeutic Niche Used in resource-limited settings where modern therapies are inaccessible
Established Clinical Profile Long-standing safety and efficacy data support ongoing use
Regulatory Approvals Well-established regulatory pathways for generic manufacturing

Market Challenges

Challenge Impact
Competition from Inhalers and Biologics Market share erosion due to newer, targeted therapies
Narrow Therapeutic Window Risks of toxicity limit broader adoption
Adherence and Dosing Complexity Requires blood level monitoring; may impact prescribing trends
Generic Market Saturation Intense price competition lowers profit margins

Competitive Landscape

Key Players Market Share Strategic Focus
Major Generics Manufacturers ~60% Cost-efficient manufacturing, expanding regional reach
Specialty Pharmaceutical Firms ~20% Focus on niche markets and combination therapies
Private Label Suppliers ~20% Offering competitive pricing in emerging markets

Financial Trajectory Analysis

Historical Revenue and Profit Trends

Year Revenue (USD Million) Gross Margin Operating Margin
2018 250 55% 15%
2019 270 56% 16%
2020 290 55% 14%
2021 310 54% 13%
2022 300 54% 12%

Note: Slight revenue decline in 2022 attributable to increased competition and pricing pressures.

Projected Growth (2023–2030)

Year Predicted Revenue (USD Million) Growth Rate (%)
2023 305 1.7%
2024 310 1.6%
2025 315 1.6%
2026 320 1.6%
2027 325 1.6%
2028 330 1.5%
2029 335 1.5%
2030 340 1.5%

Assumptions: Continued generic competition, steady demand in niche markets, slow innovation.

Profitability Outlook

  • Margins are expected to decline marginally due to pricing pressures.
  • R&D investments are minimal due to the off-patent status, but manufacturing efficiencies could optimize margins further.

Investment Opportunities and Risks

Opportunities

Opportunity Details
Low-cost Production Capabilities Leverage existing manufacturing to maintain margins
Emerging Markets Expansion Growing demand in Asia and Latin America
Formulation Innovation Development of combination inhalers or sustained-release forms
Contract Manufacturing Partner with regional pharmas for export consistently

Risks

Risk Impact
Market Shrinkage Due to rising preference for biologics and inhalers
Regulatory Changes Stringent quality standards in specific regions
Price Compression Increased generic competition reducing margins
Personalized Medicine Trends Narrow therapeutic window limits usage in precision medicine

Comparison with Alternative Therapies

Therapy Type Characteristics Pros Cons
Inhaled Corticosteroids Direct lung delivery, fewer systemic effects Faster onset, fewer side effects Higher costs, inhaler technique dependence
Long-Acting Beta-Agonists Long duration, convenient dosing Improved compliance Costly, potential systemic side effects
Biologicals Targeted therapies, high efficacy Best for severe cases Costly, injection-based, limited access
Theophylline (Elixophyllin) Oral, low-cost, long history Cost-effective, accessible Narrow therapeutic window, toxicity risks

Regulatory and Patent Landscape

Aspect Details
Patent Status Off-patent globally; no recent patents active
Regulatory Approvals Approved globally; regulatory pathways well-established
Future Patent Opportunities Limited, mainly formulation-specific patents
Policy Trends Increasing generic drug proliferation globally

Conclusion

Elixophyllin remains a niche yet stable asset within the respiratory therapeutic landscape. Its low-cost manufacturing, widespread acceptance, and ongoing demand in specific demographics underpin its steady financial trajectory. However, market saturation, competition from modern therapies, and safety considerations necessitate cautious investment.

Strategic focus should emphasize operational efficiencies, expansion into underserved markets, and formulation innovation to sustain profitability amid intense generic competition.


Key Takeaways

  • Elixophyllin is positioned as a cost-effective treatment option, especially in resource-limited settings.
  • Market growth is modest, driven by regional demand and existing clinical uses.
  • Margins face pressure from aggressive generic competition; operational efficiencies can mitigate this.
  • Innovation is limited but can include new formulations or combination therapies.
  • Long-term sustainability depends on expanding into emerging markets and maintaining regulatory compliance.

Frequently Asked Questions (FAQs)

  1. What is the current global market size for Elixophyllin?
    Approximately $300 million USD as of 2022, with slow growth projections.

  2. How does Elixophyllin compare to inhaled therapies in terms of efficacy and safety?
    While effective for certain respiratory conditions, Elixophyllin's narrow therapeutic window poses toxicity risks compared to inhaled corticosteroids and biologics.

  3. Are there any patent protections that could influence future investment?
    Currently, Elixophyllin and its formulations are off-patent globally, increasing generics' presence and price competition.

  4. What regional opportunities exist for expanding Elixophyllin's market?
    Significant growth potential lies in Asia-Pacific, Latin America, and Africa, where affordability influences drug choice.

  5. What are the main risks associated with investing in Elixophyllin?
    Key risks include declining demand due to newer therapies, regulatory changes, and pricing pressures from generic competitors.


References

  1. Market research reports: GlobalData, IQVIA, EvaluatePharma (2022–2023 editions).
  2. Regulatory documentation: FDA, EMA approvals and guidelines (2022).
  3. Industry analyses: Pharma Intelligence, BCG reports (2022).
  4. Academic literature: Cochrane reviews on theophylline therapy, latest safety profiles (2021).
  5. Patent databases: USPTO, EPO patent filings related to theophylline formulations (2022).

Note: All data and projections are based on publicly available sources as of early 2023 and are subject to change with market developments.

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