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Last Updated: March 19, 2026

THEOPHYLLINE-SR Drug Patent Profile


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Which patents cover Theophylline-sr, and what generic alternatives are available?

Theophylline-sr is a drug marketed by Scherer Rp and is included in one NDA.

The generic ingredient in THEOPHYLLINE-SR 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 Theophylline-sr

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

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  • What is the 5 year forecast for THEOPHYLLINE-SR?
  • What are the global sales for THEOPHYLLINE-SR?
  • What is Average Wholesale Price for THEOPHYLLINE-SR?
Summary for THEOPHYLLINE-SR
US Patents:0
Applicants:1
NDAs:1

US Patents and Regulatory Information for THEOPHYLLINE-SR

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Scherer Rp THEOPHYLLINE-SR theophylline CAPSULE, EXTENDED RELEASE;ORAL 088255-001 Jun 12, 1986 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

Theophylline-SR: Investment Scenario and Fundamentals Analysis

Last updated: February 3, 2026

Overview and Market Context
Theophylline-SR is a sustained-release formulation of theophylline, a xanthine derivative used as a bronchodilator in treating asthma and chronic obstructive pulmonary disease (COPD). Renowned for its narrow therapeutic window, the drug requires careful dosing and monitoring. The global market for theophylline is estimated at around $150 million[1], with steady growth driven by COPD and asthma treatment needs. Key players include specialized generics manufacturers and niche pharma companies.

Regulatory Status and Patent Landscape
Theophylline's patent protections have expired in most jurisdictions, rendering it a generic compound. This exposure to commoditization poses a significant challenge for companies seeking premium pricing. However, sustained-release (SR) formulations may secure regulatory exclusivity due to delivery advantages. Market entry barriers include compliance with pharmacokinetic and bioavailability standards, as well as generic approval pathways (ANDA in US, DMF in EU).

Market Fundamentals and Demand Drivers

  1. Prevalence of Disease
    COPD affects over 300 million globally, with asthma impacting 262 million[2]. These figures support the consistent demand for bronchodilators like Theophylline-SR.

  2. Clinical Preference and Safety Profile
    While newer agents (e.g., long-acting beta-agonists) compete with Theophylline, the latter remains a low-cost, accessible option, especially in emerging markets. Its use persists where healthcare budgets are limited or where patients cannot tolerate other medications.

  3. Pricing and Reimbursement
    As a generic, Theophylline-SR commands low prices (~$0.10–$0.20 per dose). Reimbursement frameworks in developed markets favor generics, aiding volume sales. Markets in Latin America, Asia, and Africa exhibit higher prevalence of use due to affordability.

  4. Supply Chain and Manufacturing
    High-volume manufacturing with established APIs reduces production costs. However, capacity constraints and quality compliance are critical risk factors.

Competitive Landscape
The generic space is fragmented, with multiple manufacturers offering immediate-release and SR formulations. The differentiation relies on bioavailability, manufacturing quality, and delivery stability. Market consolidation is limited but potential exists for specialized formulations with improved pharmacokinetics or combination therapies.

Investment Risks and Opportunities

  • Risks: Price erosion due to generics, tight regulation, narrow therapeutic index vulnerabilities, and market saturation.
  • Opportunities: Extending patent protection through formulation innovations, expanding into emerging markets, and integrating into combination products.

Financial Outlook and Valuation Parameters
Cost of manufacturing per unit approximates $0.02–$0.05, with wholesale prices around $0.10–$0.20. Assuming an annual volume of 100 million doses globally, revenue potential exceeds $10 million, with margins constrained by high competitive pressure. Investment profitability hinges on achieving differentiation, market penetration, and regulatory exclusivity for modified-release versions.

Strategic Considerations

  • Focus on formulations with demonstrable bioavailability and dosing advantages.
  • Secure regulatory exclusivities via New Drug Applications (NDAs) for modified-release or combination therapies.
  • Target markets with high disease prevalence and low penetration of established treatments.
  • Implement cost-efficient manufacturing and quality controls to sustain margins.

Key Takeaways
Theophylline-SR holds moderate growth potential rooted in disease prevalence and demand for low-cost bronchodilators. Market entry requires navigating patent landscapes, regulatory standards, and competitive pressures. Differentiation via formulation innovations and expanding into underserved markets present opportunities, but inherent vulnerabilities include price erosion and market saturation. Strategic focus on exclusivity for novel formulations and cost leadership enhances viability.

FAQs

  1. What are the critical regulatory hurdles for Theophylline-SR?
    Approvals depend on demonstrating bioequivalence, bioavailability, and safety, especially given the narrow therapeutic window. Formulation modifications may qualify for expedited approvals or exclusivity.

  2. How does the patent landscape affect investment decisions?
    Since original patents expired, competition relies on manufacturing quality, price, and formulation improvements. Patents for sustained-release versions or combination strategies can offer market protection.

  3. What are the primary competitors in this market?
    Other generic manufacturers worldwide produce both immediate-release and sustained-release formulations. Leading companies include Mylan, Sandoz, and Teva, with local players in emerging markets.

  4. What emerging opportunities could influence future demand?
    Development of combination therapies with corticosteroids or long-acting bronchodilators, as well as formulations with enhanced bioavailability or reduced side effects, can create new demand channels.

  5. How significant is the role of emerging markets for Theophylline-SR?
    Highly significant; low-cost generics are preferred in regions with limited healthcare budgets with high disease prevalence, such as India, China, and Latin America, representing growth opportunities.

References
[1] MarketWatch, "Theophylline Market Size, Share & Trends," 2022.
[2] WHO, "Global Surveillance, Prevention and Control of Chronic Respiratory Diseases," 2021.
[3] FDA, "ANDA Submission Guidance," 2022.

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