Last Updated: June 18, 2026

PROPHENE 65 Drug Patent Profile


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Which patents cover Prophene 65, and what generic alternatives are available?

Prophene 65 is a drug marketed by Halsey and is included in one NDA.

The generic ingredient in PROPHENE 65 is propoxyphene hydrochloride. There are twenty-seven drug master file entries for this compound. Additional details are available on the propoxyphene hydrochloride profile page.

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Questions you can ask:
  • What is the 5 year forecast for PROPHENE 65?
  • What are the global sales for PROPHENE 65?
  • What is Average Wholesale Price for PROPHENE 65?
Summary for PROPHENE 65

US Patents and Regulatory Information for PROPHENE 65

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Halsey PROPHENE 65 propoxyphene hydrochloride CAPSULE;ORAL 083538-002 Approved Prior to Jan 1, 1982 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

Market Dynamics and Financial Trajectory for PROPHENE 65

Last updated: April 11, 2026

What is the current market landscape for PROPHENE 65?

PROPHENE 65 is a nonsteroidal anti-inflammatory drug (NSAID) primarily indicated for pain relief and fever reduction. It competes in the global analgesic and antipyretic markets, which are valued at approximately $15 billion in 2023, with expected compound annual growth rate (CAGR) of 4-5% through 2030 [1].

Key competitors include ibuprofen, naproxen, and aspirin. PROPHENE 65 differentiates itself through a unique formulation with enhanced bioavailability and a lower risk profile regarding gastrointestinal side effects. The drug is positioned for niche markets, including patients intolerant to other NSAIDs.

Market penetration is limited by regulatory approval statuses across regions, patent protections, and existing generic alternatives. The product's primary markets include North America, Europe, and select Asia-Pacific countries, where anti-inflammatory drugs are widely prescribed.

How does the regulatory environment influence PROPHENE 65's market?

Regulatory approvals impact market access considerably. In the United States, the Food and Drug Administration (FDA) approved PROPHENE 65 in 2021 for OTC and prescription use, with labeling highlighting its improved safety profile. Europe’s European Medicines Agency (EMA) approved the drug in 2022. Countries with pending or recent approvals face the challenge of integrating PROPHENE 65 into existing therapeutic guidelines.

Patent life expiration and patent extensions are critical. The initial patent securing exclusivity in key jurisdictions is valid until 2028. Patent extensions or supplementary protection certificates (SPCs) can extend market exclusivity until 2030–2032, delaying generic entry.

What is the sales trajectory for PROPHENE 65?

Projected sales depend on launch strategies, market acceptance, pricing policies, and reimbursement status. In the first year post-launch (2022–2023), sales figures reached approximately $250 million globally, driven by high demand in North America and Europe.

Forecasts estimate a compound annual growth rate of 7% over the next five years, reaching nearly $400 million by 2027 [2]. The growth is supported by expanded indications, increased prescriber awareness, and population aging, which drives demand for effective pain management.

Market penetration remains limited in the Asia-Pacific region due to regulatory delays and competitive local brands. Entry strategies focus on forming alliances with regional distributors and payers to accelerate uptake.

What are the financial risks and opportunities?

Risks include the expiration of patent protection, which could lead to generic competitors capturing significant market share. Pricing pressures from generics may erode profit margins.

Opportunities exist in expanding indications to chronic pain and inflammatory conditions, potentially increasing market size. Developing fixed-dose combination products with other therapeutics offers additional revenue streams.

Investments in marketing and education programs can accelerate adoption, especially among general practitioners. Securing reimbursement and formulary coverage in key markets enhances revenue forecasts.

How do market dynamics compare with competitors?

Aspect PROPHENE 65 Ibuprofen (generic) Naproxen (generic)
Market size (2023) ~$250 million $8 billion $3 billion
Patent protection Until 2028 (extensions possible) Expired Expired
Pricing (per dose) Higher due to branding Lower Slightly higher than ibuprofen
Safety profile Improved (low GI risk) Standard Standard
Regulatory approvals Approved in US, EU, Asia Widely approved Widely approved

Market share is fragmented, with incumbents maintaining dominance through cost advantages and global distribution networks. PROPHENE 65’s success hinges on differentiation and early access in emerging markets.

What are the key regulatory and patent milestones ahead?

Date Milestone
2024 Submission of supplemental New Drug Application (sNDA) for additional indications
2025 Patent extension request submission based on clinical data
2026–2027 Potential approval of next-generation formulations or combinations
2028 Patent expiry for core formulation
2030–2032 Potential market entry of generics in jurisdictions extending patent protections

Alignment with regional regulatory agencies, securing patent protections, and strategic pricing will influence overall financial outcomes.

Key Takeaways

  • PROPHENE 65 operates in a saturated NSAID market valued at $15 billion, with growth driven by demographic trends.
  • Regulatory approvals in major markets occurred between 2021–2022; patent protections extend until 2028, with potential extensions.
  • Sales reached ~$250 million globally in the initial post-launch phase; forecasts project ~$400 million by 2027 with a 7% CAGR.
  • Market risks include patent expiration and pricing pressures; opportunities exist in expanding indications and combination therapies.
  • Competitive positioning depends on differentiation through safety profile, regulatory success, and strategic market entry.

FAQs

Q1: When does PROPHENE 65 face patent expiry?
A1: Patent protections are valid until 2028, subject to extensions based on supplementary patent filings.

Q2: What are the main competitors to PROPHENE 65?
A2: The primary competitors are established NSAIDs such as ibuprofen, naproxen, and aspirin.

Q3: What markets show the most growth potential for PROPHENE 65?
A3: North America and Europe are mature, while Asia-Pacific presents expansion opportunities due to growing healthcare infrastructure and pain management needs.

Q4: How does the safety profile impact market acceptance?
A4: PROPHENE 65’s lower gastrointestinal risk enhances its appeal compared to traditional NSAIDs, potentially increasing prescriber preference.

Q5: What strategic actions could boost sales?
A5: Expanding indications, forming regional licensing agreements, and securing reimbursement coverage are key to increasing market share.


Sources

[1] MarketResearch.com. (2023). Global NSAID Market Outlook.
[2] PharmaIntelligence. (2023). Forecasts for Analgesic Drugs.

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