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Last Updated: December 31, 2025

THEOLAIR-SR Drug Patent Profile


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When do Theolair-sr patents expire, and what generic alternatives are available?

Theolair-sr is a drug marketed by 3M and is included in four NDAs.

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

DrugPatentWatch® Litigation and Generic Entry Outlook for Theolair-sr

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

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Summary for THEOLAIR-SR
Drug patent expirations by year for THEOLAIR-SR

US Patents and Regulatory Information for THEOLAIR-SR

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
3m THEOLAIR-SR theophylline TABLET, EXTENDED RELEASE;ORAL 088369-001 Jul 16, 1987 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
3m THEOLAIR-SR theophylline TABLET, EXTENDED RELEASE;ORAL 089132-001 Jul 16, 1987 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
3m THEOLAIR-SR theophylline TABLET, EXTENDED RELEASE;ORAL 086363-002 Jul 16, 1987 DISCN No 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 THEOLAIR-SR

Last updated: July 30, 2025


Introduction

THEOLAIR-SR (theophylline extended-release tablets) occupies a specialized niche within respiratory therapeutics, primarily targeting chronic obstructive pulmonary disease (COPD) and asthma management. As an extended-release formulation of theophylline, it appeals to clinicians seeking alternatives to inhaled bronchodilators and corticosteroids. Analyzing its market dynamics and financial trajectory offers insights into its growth prospects amidst evolving therapeutic landscapes, regulatory challenges, and competitive pressures. This report synthesizes current data, industry trends, and strategic considerations relevant to stakeholders invested in THEOLAIR-SR.


Market Overview

Global Respiratory Drug Market Context

The global respiratory drugs market is projected to reach USD 56 billion by 2027, with a compound annual growth rate (CAGR) of approximately 4.5% (source: Fortune Business Insights). This growth is driven by rising COPD and asthma prevalence, aging populations, and increased awareness of respiratory health.

Position of THEOLAIR-SR within the Market

Within this landscape, THEOLAIR-SR serves as a legacy product in the methylxanthine class. Although its use has diminished in favor of inhaled therapies, it retains clinical relevance in specific patient subsets, especially where inhaler adherence is problematic or inhaled delivery is contraindicated. The drug’s distinct extended-release profile offers advantages in maintaining steady plasma concentrations, reducing side effects linked to peak levels.


Market Dynamics

1. Therapeutic Landscape and Competitive Environment

In recent years, the respiratory market has shifted towards personalized inhaled therapies such as long-acting beta-agonists (LABAs), leukotriene modifiers, and biologics. According to the Global Initiative for Chronic Obstructive Lung Disease (GOLD), these are now first-line for many patients. Consequently, theophylline-based therapies like THEOLAIR-SR have experienced declining prescriptions, primarily confined to niche patient groups refractory to inhaled treatments.

2. Regulatory Environment and Patent Status

THEOLAIR-SR faces imminent patent expirations in several jurisdictions, exposing it to increased generic competition. While this decline in exclusivity can reduce prices, it also offers an opportunity for market penetration through lower-cost generics, especially in emerging markets. Regulatory bodies continue to emphasize inhaler device innovation, with limited recent regulatory milestones for methylxanthines, which constrains the product's growth potential.

3. Clinical Efficacy and Safety Considerations

Theophylline’s narrow therapeutic window necessitates rigorous blood level monitoring, limiting its convenience and safety profile. Advances in safety data are sparse, and adverse events like cardiac arrhythmias remain concerns. These factors temper aggressive adoption, especially in clinics prioritizing safety and compliance.

4. Prescriber Preferences and Patient Compliance

Physicians tend to favor inhaler-based regimens due to their direct targeting and ease of dose titration. Nonetheless, a subset of patients, especially those with poor inhaler technique or adherence issues, derive benefit from oral options like THEOLAIR-SR. This demographic remains stable but not expanding appreciably.

5. Emerging Markets and Off-Label Use

In developing countries, the affordability of generics and the presence of limited healthcare infrastructure sustain the use of methylxanthines. Here, THEOLAIR-SR's low cost may support continued demand, especially where inhaler access is limited. Off-label use in certain obstructive conditions further sustains its niche.


Financial Trajectory

1. Revenue Trends and Market Share

Historical data indicates a steady decline in THEOLAIR-SR's sales volume over the past five years, correlating with the rise of inhaled therapies. For instance, revenue from methylxanthines in the U.S. has decreased by approximately 40% from 2018 to 2022 ([1]). In contrast, markets with limited inhaler use or high generic penetration may witness stable or minimal growth.

2. Impact of Generic Competition

Patent expirations in key regions diminish exclusivity, leading to price erosion. Generic entrants typically reduce prices by 30-50%, fragmenting market share among multiple manufacturers. These dynamics pressure profit margins but can expand overall access if managed strategically.

3. Cost-Effectiveness and Reimbursement

Healthcare payers increasingly favor cost-effective therapies. The lower acquisition cost of generics and oral formulations like THEOLAIR-SR can be advantageous in formulary decisions, especially in budget-constrained settings. However, reimbursement policies favoring inhaled therapies may limit broader utilization.

4. Investment and R&D Outlook

Limited R&D efforts are noted for methylxanthine derivatives, attributable to their declining prominence. Unless repositioned for novel indications, the financial trajectory for THEOLAIR-SR remains modest, mostly dependent on existing patient base steadiness and generic market share management.

5. Strategic Opportunities

  • Market Repositioning: Leveraging cost advantages in emerging markets can sustain revenues.
  • Combination Therapies: Incorporating THEOLAIR-SR into combination regimens may foster niche applications.
  • Patient Support Programs: Enhancing adherence via personalized monitoring could retain existing patients longer.

Future Outlook

Short to Medium Term (Next 3–5 Years)

Given patent cliffs and shifting prescribing trends, THEOLAIR-SR is positioned as a low-margin, specialized product. Revenue is expected to plateau or decline modestly absent strategic repositioning. Continued utilization will hinge on market penetration in underserved regions and niche patient populations.

Long-Term Perspective (Beyond 5 Years)

Unless innovative formulations or new indications emerge, THEOLAIR-SR's role will likely diminish further. The focus of R&D efforts will probably shift toward inhaled biologics and gene therapies for COPD, further overshadowing oral methylxanthines.


Key Takeaways

  • Market decline due to therapeutic shifts: The move towards inhaled, targeted therapies reduces the demand for methylxanthine formulations like THEOLAIR-SR.
  • Generics and price erosion: Patent expirations heighten generic competition, driving down prices but potentially expanding access in cost-sensitive markets.
  • Niche applications remain viable: Specific patient demographics—poor inhaler adherence, contraindications—may sustain demand modestly.
  • Limited R&D activity: Innovation in methylxanthines is scarce, emphasizing the importance of strategic repositioning.
  • Emerging markets as growth avenues: Cost advantages position THEOLAIR-SR favorably where inhaler access is limited or affordability is paramount.

FAQs

1. Is THEOLAIR-SR still a commercially viable product?
While its overall market sales have declined due to shifts toward inhaled therapies, THEOLAIR-SR retains viability as a cost-effective option in certain regions and patient subsets. Its future depends on strategic market positioning and the degree of generic competition.

2. How do patent expirations affect THEOLAIR-SR’s financial outlook?
Patent expirations generally lead to price erosion and increased generic entry, which can reduce revenue margins but expand accessibility. Without new formulations or indications, these effects likely result in a gradual revenue decline.

3. Are there any recent innovations involving THEOLAIR-SR?
Currently, no significant innovations or reformulations are publicly announced. The focus remains on maintaining existing formulations and adapting to market needs.

4. What role do emerging markets play in THEOLAIR-SR’s future?
Emerging markets, characterized by limited inhaler adoption and price-sensitive healthcare systems, present opportunities for sustained sales through lower-cost generic versions.

5. Can THEOLAIR-SR be repositioned in new therapeutic areas?
Repositioning requires evidence of new indications or formulations. Given the drug’s pharmacodynamics and safety profile, options are limited; the primary value remains in its established use for COPD and asthma management.


References

[1] Fortune Business Insights. "Respiratory Drugs Market Size, Share & Industry Analysis, 2020-2027."

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