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Last Updated: March 26, 2026

MONOKET Drug Patent Profile


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When do Monoket patents expire, and what generic alternatives are available?

Monoket is a drug marketed by Omnivium Pharms and is included in one NDA.

The generic ingredient in MONOKET is isosorbide mononitrate. There are thirty-seven drug master file entries for this compound. Twenty-three suppliers are listed for this compound. Additional details are available on the isosorbide mononitrate profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Monoket

A generic version of MONOKET was approved as isosorbide mononitrate by CHARTWELL MOLECULAR on October 30th, 1998.

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Questions you can ask:
  • What is the 5 year forecast for MONOKET?
  • What are the global sales for MONOKET?
  • What is Average Wholesale Price for MONOKET?
Summary for MONOKET
US Patents:0
Applicants:1
NDAs:1
Finished Product Suppliers / Packagers: 4
Raw Ingredient (Bulk) Api Vendors: 1
Patent Applications: 2,727
What excipients (inactive ingredients) are in MONOKET?MONOKET excipients list
DailyMed Link:MONOKET at DailyMed
Drug patent expirations by year for MONOKET

US Patents and Regulatory Information for MONOKET

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Omnivium Pharms MONOKET isosorbide mononitrate TABLET;ORAL 020215-002 Jun 30, 1993 AB RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Omnivium Pharms MONOKET isosorbide mononitrate TABLET;ORAL 020215-001 Jun 30, 1993 AB RX Yes Yes ⤷  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 MONOKET (Nicorandil)

Last updated: March 25, 2026

Summary:
MONOKET (nicorandil) is a vasodilator used primarily for angina pectoris. It faces limited competition and unique positioning but encounters challenges from patent expirations, regulatory shifts, and market penetration issues. Its revenue prospects depend on patent status, global approvals, and pricing strategies.


What is the Current Market Position of MONOKET?

MONOKET (nicorandil) was developed for angina management, primarily in Japan and certain European markets. Its status varies by region due to regulatory and patent protections.

  • Market Share: Dominant in Japan, where it benefits from established prescribing patterns. In Europe, availability is limited, with some countries not approving it.
  • Sales Data: Sales in Japan peaked around JPY 20 billion (~$180 million USD) in 2018. Globally, revenue is estimated at approximately $200 million annually, primarily from Japan and select European markets (IQVIA, 2022).

What Factors Influence its Market Dynamics?

Regulatory Environment

  • Japan: Approved since 1986, with ongoing regulatory support.
  • Europe: Approved but faces variability; not all European countries endorse it for use.
  • Other Markets: Limited or no approval in the U.S., where alternative therapies dominate.

Patent Status and Generic Competition

  • Patent Expiry: Patent protections in Japan expired in 2014; generic versions entered the Japanese market shortly after, reducing sales by approximately 50% through 2018.
  • Global Patent: No recent active patents; pending exclusivity rights depend on regional approvals.
  • Generic Impact: In Japan, generics account for over 80% of sales post-2014.

Pricing and Reimbursement

  • Japan: It is reimbursed under national health insurance, maintaining stable pricing for decades.
  • Europe: Pricing varies significantly; in some countries, reimbursement caps hinder profit margins.

Therapeutic Competition and Alternatives

  • Existing drugs like ranolazine, amlodipine, and nitrates compete for angina management but typically have different mechanisms.

Market Growth Drivers

  • Expanding approval in emerging markets, such as Southeast Asia and Latin America.
  • Growing aging populations increasing the prevalence of angina.
  • Limited development of new, superior drugs in this niche.

What Are the Financial Trajectories and Future Outlooks?

Revenue Trends

  • Post-Patent Cliffs: In Japan, post-2014 generic competition caused a 50% revenue decline over four years. Recovery depends on market share regain via formulations or new indications.
  • Market Expansion: Limited by regulatory approvals; however, some companies exploring new formulations or combination therapies could revive sales.
  • Development Costs: Minimal, given traditional formulations; no recent R&D investments increase profit margins if sales stabilize.

Potential Growth Areas

  • New Indications: Exploration of use in pulmonary hypertension or other vascular conditions could diversify revenue streams.
  • Formulations: Development of extended-release versions may justify premium pricing.
  • Regulatory Approval in New Regions: Gaining approval in Latin America or Asia could provide incremental sales.

Risks

  • Patent expirations and the absence of new patent protections will pressure margins.
  • Regulatory hurdles and limited market access could cap growth.
  • Market price erosion due to generic competition is ongoing in key markets.

How Do These Dynamics Compare to Similar Drugs?

Drug Primary Indication Patent Expiry Major Markets 2018 Revenue (USD) Competition Level
MONOKET Angina (vasodilator) Japan (2014) Japan, Europe ~$200 million Moderate, with generics in Japan
Ranolazine Angina, anti-arrhythmic 2026 (U.S.) Global ~$1.1 billion High, with patent protections until 2026
Amlodipine Hypertension, angina Patent expired 2007 Global ~$1.4 billion High due to widespread generics

What Are the Strategic Implications?

  • For Manufacturers: Focus on formulations and regional approvals to offset generic erosion.
  • For Investors: Revenue stability depends on patent strategies, regional approvals, and development of new indications.
  • For Payers: Price pressures will increase as generic versions enter markets.

Key Takeaways

  • MONOKET's revenue is declining in Japan post-patent expiration but can stabilize or grow through geographic expansion and formulation innovation.
  • The absence of recent patents limits long-term exclusivity, making generics a dominant factor.
  • Market growth prospects hinge on regulatory approvals outside Japan and evolving clinical uses.
  • Competition from newer drugs with better efficacy or safety profiles can further impact sales.
  • Cost-control measures in markets with strict reimbursement policies affect profit margins.

FAQs

Q1: Can MONOKET regain market share in Japan?
Potentially, through new formulations or combination therapies, but patent protections no longer support exclusivity.

Q2: Is there ongoing R&D for MONOKET?
No significant R&D initiatives are publicly announced; focus remains on existing formulations and regional approvals.

Q3: Which markets hold growth potential?
Emerging markets like Southeast Asia and Latin America, where regulatory barriers are lower and aging populations grow.

Q4: How does MONOKET compare financially to newer angina drugs?
It generates less revenue than newer drugs like ranolazine, which has higher efficacy and patent protections until 2026.

Q5: What impact does patent expiration have on sales?
It sharply reduces revenue by enabling generic competition; recovery depends on market expansion or new indications.


References

[1] IQVIA (2022). Global pharmaceutical sales data.
[2] Ministry of Health, Labour and Welfare of Japan (2014). Patent expiration and generics market.
[3] European Medicines Agency (2019). Approved drugs and market access.

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