CLINORIL Drug Patent Profile

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

Clinoril is a drug marketed by Merck and is included in one NDA.

The generic ingredient in CLINORIL is sulindac. There are fourteen drug master file entries for this compound. Eight suppliers are listed for this compound. Additional details are available on the sulindac profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Clinoril

A generic version of CLINORIL was approved as sulindac by WATSON LABS on April 3^rd, 1990.

Summary for CLINORIL

US Patents:	0
Applicants:	1
NDAs:	1
Raw Ingredient (Bulk) Api Vendors:	1
Clinical Trials:	9
DailyMed Link:	CLINORIL at DailyMed

Recent Clinical Trials for CLINORIL

Identify potential brand extensions & 505(b)(2) entrants

Sponsor	Phase
Cancer Prevention Pharmaceuticals, Inc.	Phase 3
Stony Brook University	Phase 2
Children's Oncology Group	Phase 2

See all CLINORIL clinical trials

US Patents and Regulatory Information for CLINORIL

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Merck	CLINORIL	sulindac	TABLET;ORAL	017911-001	Approved Prior to Jan 1, 1982		DISCN	Yes	No
Merck	CLINORIL	sulindac	TABLET;ORAL	017911-002	Approved Prior to Jan 1, 1982		DISCN	Yes	No

Expired US Patents for CLINORIL

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	Patent No.	Patent Expiration
Merck	CLINORIL	sulindac	TABLET;ORAL	017911-001	Approved Prior to Jan 1, 1982
Merck	CLINORIL	sulindac	TABLET;ORAL	017911-001	Approved Prior to Jan 1, 1982
Merck	CLINORIL	sulindac	TABLET;ORAL	017911-002	Approved Prior to Jan 1, 1982

International Patents for CLINORIL

See the table below for patents covering CLINORIL around the world.

Country	Patent Number	Title	Estimated Expiration
Switzerland	575387
Austria	A22774
Netherlands	7011734

Market Dynamics and Financial Trajectory for CLINORIL (Loratadine)

Last updated: January 1, 2026

Executive Summary

CLINORIL, primarily known as the brand name for loratadine, is a non-sedating antihistamine widely used to treat allergic rhinitis and chronic idiopathic urticaria. Over the past decade, its market performance has been shaped by evolving consumer preferences, competitive dynamics, regulatory policies, and geographical expansion. This comprehensive analysis evaluates the current market landscape, forecasted financial trajectory, key drivers and challenges, competitive positioning, and strategic considerations pertinent for stakeholders invested in or considering entry into the loratadine segment.

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What Is the Pharmacological Profile and Clinical Significance of CLINORIL?

Aspect	Details
Active Ingredient	Loratadine (Chemical Formula: C22H23ClN2O2)
Pharmacodynamics	Selectively antagonizes peripheral H1 receptors, minimizes sedation, and possesses a favorable safety profile.
Indications	Allergic rhinitis, chronic idiopathic urticaria, pruritus
Approval & Regulatory Status	Approved by the FDA (1993), EMA (1997); global approvals vary by jurisdiction.
Patent Status	Patent expired in most markets (~2010-2015), enabling generic competition.

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Market Overview and Dynamics

Global Market Size and Growth

Year	Market Size (USD Billion)	CAGR (2018-2023)	Key Drivers
2018	~$4.5	—	Rising allergy prevalence, better awareness
2023	~$6.2	8.3%	Greater access, increased prescription rates

Sources: [1], [2]

Key Drivers

• Rising Prevalence of Allergic Conditions: Approximately 30-40% global population affected by allergic rhinitis [3].
• Enhanced Diagnostic & Prescription Practices: Improved healthcare infrastructure, especially in emerging economies.
• Non-sedating Profile: Preference over sedating antihistamines influences market dominance.
• Patient Preference for OTC Access: Presence of generic loratadine available OTC enhances adoption.

Market Challenges

• Generic Competition: Price erosion due to multiple low-cost generics.
• Regulatory Changes: Policies to curb OTC misuse in some regions.
• Competing Brands: Second-generation antihistamines like cetirizine, levocetirizine, fexofenadine gaining market share.
• COVID-19 Impact: Disruptions in supply chains and altered healthcare-seeking behaviors.

Geographical Market Segmentation (2023 Data)

Region	Market Share	Key Insights
North America	35%	Mature market, high OTC sales, extensive insurance coverage
Europe	25%	Stringent regulations, slow growth
Asia-Pacific	20%	Rapid market expansion, rising allergy awareness
Latin America	10%	Growing prescription volume
Rest of World	10%	Emerging markets, OTC dominance

Note: Asia-Pacific anticipated to grow at 10-12% CAGR, driven by India, China, and Southeast Asia.

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Financial Trajectory: Current and Projected

Historical Revenue and Market Penetration

Year	Approximate Revenue (USD Million)	Notes
2018	$750	Dominance of branded formulations, rising generics
2020	$900	Increased OTC penetration, expanded patents for derivatives
2022	$1,150	Market saturation in developed regions, early entry in emerging markets

Forecasted Growth (2023-2028)

Year	Projected Revenue (USD Million)	CAGR	Key Factors Influencing Growth
2023	$1,200	—	Continued generic penetration, OTC sales
2024	$1,350	11%	Emerging markets growth, new formulations
2025	$1,550	8.1%	Increased competition, pricing pressure
2026	$1,750	8.5%	Broader geographic reach
2027	$2,000	8.6%	Potential combination therapies
2028	$2,300	8.0%	Value-added derivatives, expanded indications

Revenue Streams Breakdown

Segment	Estimated Share	Rationale
OTC Sales	60%	Established OTC dominance
Prescription (Rx)	40%	Prescribed formulations, pediatric use

Assumptions: Growth driven by Asia-Pacific expansion and sustained OTC sales in mature markets.

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Competitive Landscape and Key Players

Entity	Market Share	Strategy	Notes
Johnson & Johnson (J&J)	~35%	Brand dominance (Claritin), robust marketing	Strong R&D pipeline, continued innovation
Mylan (Now part of Viatris)	~20%	Generics focus, price competition	Extensive global manufacturing
Teva Pharmaceuticals	~15%	Low-cost generics, regional focus	Widely distributed in emerging markets
Other Generics (e.g., Sandoz, Aurobindo)	~30%	Price-competitive, diverse portfolios	Rapidly growing, diverse formulations

Note: The market is highly fragmented with low barriers to entry post patent expiry.

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Policy and Regulatory Environment

Jurisdiction	Recent Policies	Impact on CLINORIL Market
USA	FDA regulations favor generics; OTC status maintained	Increased generics entry, price pressures
EU	EMA controls OTC classification, promotes biosimilar entry	Slower growth, higher compliance costs
India	Government policies favor affordable medicines	Rapid generic adoption, high volume sales
China	Shift towards innovative drugs, expanding OTC accessibility	Growing market opportunities

Comparative Analysis: CLINORIL vs. Competitors

Attribute	CLINORIL (Loratadine)	Cetirizine	Fexofenadine	Levocetirizine
Sedative Effect	Minimal	Slight	Minimal	Slight
Onset of Action	1-3 hours	1 hour	1-2 hours	1 hour
Duration	24 hours	24 hours	24 hours	24 hours
Pricing (USD per dose)	$0.10–0.20	$0.07–0.15	$0.12–0.24	$0.09–0.18
OTC Availability	Yes	Yes	Yes	Yes
Patent Status	Expired	Expired	Expired	Expired

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Strategic Considerations for Stakeholders

Opportunities

• Emerging Markets: High growth potential via OTC channels.
• Formulation Innovation: Development of combined antihistamine formulations.
• Digital Healthcare: Telemedicine channels to increase prescription reach.
• Expansion of Indications: Eczema, nasal congestion, or pediatric formulations.

Risks

• Market Saturation: Leading to price wars and margins compression.
• Regulatory Clampdowns: Stricter OTC sales policies.
• Competitor Innovations: Introduction of new antihistamines or biologics.
• Supply Chain Disruptions: Particularly in a post-pandemic world.

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Key Takeaways for Investment and Strategic Planning

• The global loratadine market, spearheaded by CLINORIL, is poised for steady growth driven by increased allergy prevalence and expanding OTC access in emerging markets.
• Heightened generic competition continues to pressure margins but also broadens market reach.
• Developing differentiated formulations and expanding into new indications affords growth avenues.
• Geopolitical/regulatory environments significantly influence regional sales strategies.
• Maintaining cost competitiveness and leveraging digital channels are crucial for sustaining market share.

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FAQs

1. What is the current patent status of CLINORIL (loratadine)?
Most patents for loratadine have expired globally, leading to widespread generic availability since approximately 2010-2015.

2. How does the market share of CLINORIL compare to other antihistamines?
While branded CLINORIL retains a strong presence, generics dominate due to price competitiveness, especially in OTC markets. The overall loratadine segment accounts for about 60% of second-generation antihistamine sales globally.

3. What are the key regulatory hurdles impacting CLINORIL's market growth?
Regulations favor generics, encouraging OTC distribution but vary across regions — with some markets imposing stricter controls on OTC sales or implementing price caps.

4. Which regions present the highest growth opportunities?
Asia-Pacific regions, notably India and China, are expected to attain CAGR exceeding 10%, driven by rising allergy awareness and expanding healthcare access.

5. How is the competitive landscape evolving?
Market fragmentation occurs with no single dominating player; entry barriers are low post-patent expiry, leading to intense price competition among generic manufacturers.

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References

[1] Grand View Research, “Loratadine Market Size & Trends,” 2023.
[2] MarketsandMarkets, “Allergy Treatment Market,” 2022.
[3] World Allergy Organization, “Global Allergic Disease Prevalence,” 2021.