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Last Updated: December 11, 2025

CHLOR-TRIMETON Drug Patent Profile


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Summary for CHLOR-TRIMETON
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US Patents and Regulatory Information for CHLOR-TRIMETON

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Schering Plough CHLOR-TRIMETON chlorpheniramine maleate INJECTABLE;INJECTION 008826-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Schering CHLOR-TRIMETON chlorpheniramine maleate TABLET;ORAL 006921-002 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Bayer Healthcare Llc CHLOR-TRIMETON chlorpheniramine maleate; pseudoephedrine sulfate TABLET, EXTENDED RELEASE;ORAL 018397-001 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Schering Plough CHLOR-TRIMETON chlorpheniramine maleate INJECTABLE;INJECTION 008794-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Schering CHLOR-TRIMETON chlorpheniramine maleate SYRUP;ORAL 006921-006 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Bayer Healthcare Llc CHLOR-TRIMETON chlorpheniramine maleate TABLET, EXTENDED RELEASE;ORAL 007638-002 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Bayer Healthcare Llc CHLOR-TRIMETON chlorpheniramine maleate TABLET, EXTENDED RELEASE;ORAL 007638-001 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: CHLOR-TRIMETON

Last updated: August 9, 2025

Introduction

Chlor-Trimeton, the trade name for chlorpheniramine maleate, stands as a cornerstone in allergy relief medications. As a first-generation antihistamine, it has long been utilized to mitigate symptoms associated with allergic rhinitis, hay fever, and combined allergic conditions. Despite being around for decades, its market dynamics and potential financial trajectory are shaped by evolving healthcare trends, regulatory environments, and competitive landscape shifts. This analysis examines the current industry position of Chlor-Trimeton, assesses recent developments, forecasts growth trajectories, and offers insights pertinent for stakeholders.

Historical Context and Product Profile

Chlorpheniramine was first introduced in the 1940s and gained widespread acceptance due to its efficacy in alleviating allergy symptoms. Its mechanism involves blocking histamine H1 receptors, thereby reducing allergic responses. Available primarily in oral tablet and syrup form, Chlor-Trimeton is over-the-counter (OTC) in many jurisdictions, which significantly influences its market access and sales volume.

The drug’s affordability and established safety profile historically contributed to its attractiveness. However, the advent of second-generation antihistamines—like loratadine and cetirizine—offered alternatives with fewer sedative side effects, shifting consumer preferences and prescribing practices.

Market Dynamics

1. Competitive Landscape

The antihistamine market has transitioned considerably over the past two decades. While Chlor-Trimeton maintains a strong foothold as an OTC choice for allergy sufferers, it faces stiff competition from newer, non-sedating second-generation antihistamines that offer improved patient compliance due to better side-effect profiles [1]. Pharmaceutical giants have launched new formulations and combination products, increasing market saturation. Moreover, prescription antihistamines, nasal sprays, and corticosteroid therapies further consolidate market share, reducing OTC sales for older agents.

2. Regulatory Environment

Regulatory agencies worldwide, including the FDA and EMA, continually reassess drug safety and efficacy profiles. Chlorpheniramine’s sedative effects and anticholinergic side effects have prompted regulatory bodies to recommend cautious use, especially in vulnerable populations such as children and the elderly [2]. In some markets, restrictions on OTC sales or labeling updates may influence sales volumes. Nevertheless, longstanding use and well-documented safety profiles sustain its commercial viability.

3. Consumer Trends and Demographics

Increased health awareness and preference for newer therapies influence demand. Patients increasingly favor second-generation antihistamines for their tolerability. However, the cost-effectiveness and familiarity of Chlor-Trimeton sustain its utility in low-income populations and regions with limited healthcare infrastructure. Additionally, the aging population, prone to allergic conditions, still constitutes a viable consumer base, although clinicians tend to prefer newer agents for safety reasons.

4. Manufacturing and Supply Chain Factors

Global manufacturing has experienced disruptions amid geopolitical tensions and pandemic-related constraints. Despite these challenges, Chlor-Trimeton’s production remains steady, benefiting from generic manufacturing and widespread availability. Cost pressures and supply chain efficiencies influence the pricing strategy, impacting profit margins.

Financial Trajectory

1. Current Revenue Landscape

Chlor-Trimeton’s current global revenues are primarily derived from OTC sales in North America, Asia, and select European markets. Its annual sales are estimated in the low hundreds of millions USD, with a significant portion coming from mature markets where the drug remains a household staple [3].

2. Growth Drivers

  • Expansion in Emerging Markets: The increased prevalence of allergic diseases and limited access to newer therapies create opportunities in emerging economies such as India and Southeast Asia. Consumer familiarity and lower costs substantially drive adoption.
  • Formulation Innovations: Development of new delivery formats—such as fast-dissolving tablets, liquids, or combination formulations—can boost appeal and differentiate products.
  • Regulatory Approvals and Rebranding: Regulatory approvals expanding age suitability or signaling safety enhancements may rejuvenate demand.
  • Private Label and Generic Competition: The availability of low-cost generics enhances market penetration but pressures margins for branded versions.

3. Challenges and Risks

  • Market Share Erosion: Preference for second-generation antihistamines and allergy treatments diminishes the market size for Chlor-Trimeton.
  • Regulatory Constraints: Enhanced safety warnings or use restrictions could reduce sales, especially in sensitive populations.
  • Patent and Exclusivity Status: As a generic drug, Chlor-Trimeton faces intense price competition, impacting profitability.
  • Consumer Preferences: The shift toward non-sedating therapies and alternative allergy management introduces persistent demand risks.

4. Future Outlook and Projections

The market projection suggests a modest compound annual growth rate (CAGR) in the range of 2-4% over the next five years, primarily driven by emerging markets’ expansion and formulations innovations. However, growth may plateau or decline slightly in saturated mature markets due to displacement by newer agents [4].

Pharmaceutical companies exploring repositioning, such as combining Chlor-Trimeton with other compounds or leveraging it in multidrug regimens, might unlock additional revenue streams. Yet, these strategies depend heavily on regulatory acceptance and clinical validation.

Market Opportunities and Strategic Recommendations

  • Targeted Expansion: Focus on increasing accessibility in developing economies through strategic partnerships and local manufacturing.
  • Product Differentiation: Invest in formulations that improve patient compliance—e.g., fast-dissolving or liquid forms.
  • Regulatory Engagement: Proactively seek label updates that expand age indications or highlight safety enhancements.
  • Digital and OTC Marketing: Leverage digital platforms for consumer education, emphasizing the drug’s efficacy and affordability.
  • Monitoring Competitive Moves: Keep abreast of innovations and patent expirations that could influence pricing and market share.

Conclusion

Chlor-Trimeton’s market dynamics are characterized by a mature product adapting to a landscape increasingly dominated by newer therapies. While facing certain headwinds—including consumer shift towards non-sedating antihistamines and regulatory scrutiny—its entrenched position in specific demographics and markets offers continued revenue potential. Strategic focus on emerging markets, formulation innovation, and regulatory engagement will be critical in shaping its financial trajectory.

The drug’s future will hinge on balancing its established brand strength with innovation, navigating regulatory landscapes wisely, and addressing evolving consumer preferences. The prospects remain cautiously optimistic in select niches, while broader growth may require repositioning or product line extensions.


Key Takeaways

  • Market Position: Chlor-Trimeton remains a cost-effective, widely recognized antihistamine, but faces competition from newer, non-sedating agents.
  • Growth Opportunities: Emerging markets and formulation innovations present notable avenues for revenue expansion.
  • Regulatory Impact: Safety concerns necessitate proactive regulatory engagement to extend product life cycles.
  • Competitive Landscape: Generic competition constrains margins; strategic branding and differentiation are essential.
  • Future Outlook: Conservative growth estimates highlight the need for targeted strategies amidst evolving healthcare trends.

FAQs

1. What are the main competitors to Chlor-Trimeton in the allergy medication market?
Second-generation antihistamines like loratadine, cetirizine, and levocetirizine are primary competitors due to their better side-effect profiles and efficacy. Nasal corticosteroids and combination therapies also compete for market share.

2. How do regulatory agencies impact the marketability of Chlor-Trimeton?
Regulatory agencies may impose safety warnings, restrict OTC sales, or modify labeling based on safety data, influencing consumer demand and prescribing habits. Proactive regulatory engagement can mitigate adverse impacts.

3. What regions offer the most growth potential for Chlor-Trimeton?
Emerging markets such as India, Southeast Asia, and parts of Latin America offer growth opportunities driven by increasing allergy prevalence, limited access to newer therapies, and affordability factors.

4. How does the patent status of Chlor-Trimeton influence its market?
As a generic, Chlor-Trimeton faces intense price competition, limiting margins but ensuring broad access and continued sales volume, especially in markets where affordability is critical.

5. What strategies can pharmaceutical companies employ to extend the product’s market life?
Innovations in formulation, expanding indications, regulatory updates, targeted marketing, and forming strategic partnerships in emerging markets are key strategies to prolong product relevance.


References
[1] Global Market Insights. "Antihistamines Market Analysis." 2022.
[2] FDA Drug Safety Communications. “Safety considerations for antihistamines,” 2020.
[3] IQVIA. "OTC Medication Sales Data, 2022."
[4] Market Research Future. "Allergy Treatment Market Forecast 2022-2027."

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