Last Updated: August 2, 2026

SULINDAC Drug Patent Profile


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DrugPatentWatch® Litigation and Generic Entry Outlook for Sulindac

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

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Summary for SULINDAC
US Patents:0
Applicants:7
NDAs:10

US Patents and Regulatory Information for SULINDAC

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Ani Pharms SULINDAC sulindac TABLET;ORAL 072973-002 Feb 28, 1992 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Epic Pharma Llc SULINDAC sulindac TABLET;ORAL 073262-002 Sep 6, 1991 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Chartwell Rx SULINDAC sulindac TABLET;ORAL 072713-001 Aug 30, 1991 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Sun Pharm Industries SULINDAC sulindac TABLET;ORAL 072051-001 Apr 17, 1991 AB RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Epic Pharma Llc SULINDAC sulindac TABLET;ORAL 073262-001 Sep 6, 1991 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Watson Labs SULINDAC sulindac TABLET;ORAL 071795-001 Apr 3, 1990 AB RX No Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Ani Pharms SULINDAC sulindac TABLET;ORAL 072973-001 Feb 28, 1992 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
Last updated: February 10, 2026

What is the current market landscape for SULINDAC?

Sulindac is a nonsteroidal anti-inflammatory drug (NSAID) used primarily in the treatment of osteoarthritis, rheumatoid arthritis, and familial adenomatous polyposis. Its annual sales globally approached $100 million in 2021, with the largest markets in the U.S. and Europe. The drug's patent expired around 2006, leading to its generic status, which affects its revenue potential but increases market accessibility and utilization.

How does Sulindac’s patent and regulatory status influence its market potential?

Sulindac's patent expiration has transitioned it into a generic medication, leading to increased competition from multiple manufacturers. The drug is approved by the FDA and EMA, with indications primarily for inflammatory conditions. No recent patent extensions or exclusivity rights are in effect. The expiration has driven down prices but expanded access, with generic versions largely substituting originator brands. That limits new investment opportunities in brand-specific marketing but sustains long-term steady revenue streams from generics.

What are the key clinical and safety considerations?

Clinical studies demonstrate Sulindac's efficacy comparable to other NSAIDs, with a well-documented safety profile. Risks include gastrointestinal bleeding, cardiovascular events, and renal impairment, especially with long-term use. These safety concerns influence prescribing patterns, with physicians preferring to reserve Sulindac for patients intolerant of other NSAIDs. Its side effect profile, combined with available alternatives, constrains high-margin innovation or premium pricing.

Is there ongoing R&D or lifecycle extension opportunities?

Currently, no new formulations or clinical trials are reported for Sulindac. The drug is considered well-established with no significant pipeline activity. Attempts to develop derivative compounds or combination therapies have been limited. The focus remains on managing side effects and improving safety profiles rather than new indications, constraining significant future growth.

Which competitors and alternative therapies impact Sulindac’s market?

Major competitors include other NSAIDs like ibuprofen, naproxen, and diclofenac, alongside selective COX-2 inhibitors such as celecoxib. Biologics are emerging in specific inflammatory conditions but do not directly compete with NSAIDs for general pain management. The availability of these alternatives and their safety profiles influence Sulindac's market share, especially in chronic conditions.

What macroeconomic factors influence Sulindac’s investment outlook?

Pricing pressures from healthcare payers and regulatory agencies promote generics, reducing profit margins. Patent expiry accelerates market saturation. Patent challenges or regulatory changes aimed at NSAID safety monitoring could impact sales. Healthcare system reforms emphasizing cost containment also influence prescribing behaviors, favoring lower-cost generics like Sulindac.

How do regulatory policies shape future prospects?

Regulatory agencies prioritize safety monitoring for NSAIDs. Any future restrictions on dosage, duration, or labeling could limit usage or increase compliance costs. Conversely, if new safety data emerge, potential liabilities could affect manufacturers and investors. Clear guidelines diminish legal risks but also limit aggressive marketing.

What is the investment outlook for Sulindac?

Given its generic status, Sulindac offers limited upside potential compared to branded drugs. Its steady revenue stream derived from established clinical use makes it suitable for conservative investment strategies focused on predictable cash flows. The lack of pipeline activity reduces growth prospects. Market competition from other NSAIDs and emerging therapies constrains margins.

Key Takeaways

  • Sulindac's revenue is stable but limited post-patent expiration, with annual sales near $100 million.
  • Its generic status lowers pricing but sustains widespread use, especially for patients intolerant of other NSAIDs.
  • No current pipeline or lifecycle extension initiatives exist, constraining future growth.
  • Competition from other NSAIDs and biologics influences its market share.
  • Regulatory safety concerns and macroeconomic pressures reduce profit margins but support ongoing demand.

FAQs

1. Can Sulindac be repositioned for new therapeutic uses?
Current evidence does not support significant new indications that could revive its innovation pipeline.

2. How do safety concerns affect Sulindac prescribing?
Risks of gastrointestinal, cardiovascular, and renal adverse effects limit use, especially in high-risk populations.

3. Is there potential for Sulindac to regain market exclusivity?
No. Patent expiry in 2006 precludes exclusivity renewals; no recent extensions exist.

4. How does market competition influence Sulindac's pricing?
Widespread generic availability drives prices down, limiting profit margins but increasing accessibility.

5. What macro trends could impact long-term demand?
Healthcare cost containment and safety monitoring policies may further constrain NSAID use, affecting Sulindac demand.

Sources:
[1] IQVIA Market Data, 2021.
[2] FDA Drug Approvals and Safety Reports.
[3] FarmaTrack Global Pharma Insights, 2022.

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