Last Updated: June 18, 2026

NORETHIN 1/50M-28 Drug Patent Profile


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When do Norethin 1/50m-28 patents expire, and what generic alternatives are available?

Norethin 1/50m-28 is a drug marketed by Heritage Pharma and is included in one NDA.

The generic ingredient in NORETHIN 1/50M-28 is mestranol; norethindrone. There are eleven drug master file entries for this compound. Additional details are available on the mestranol; norethindrone profile page.

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Questions you can ask:
  • What is the 5 year forecast for NORETHIN 1/50M-28?
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Summary for NORETHIN 1/50M-28

US Patents and Regulatory Information for NORETHIN 1/50M-28

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Heritage Pharma NORETHIN 1/50M-28 mestranol; norethindrone TABLET;ORAL-28 071540-001 Apr 12, 1988 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 NORETHIN 1/50M-28

Last updated: March 29, 2026

What are NORETHIN 1/50M-28’s market positioning and competitive landscape?

NORETHIN 1/50M-28 is a contraceptive vaginal ring containing ethinylestradiol and etonogestrel. It has gained regulatory approval in multiple markets, including the U.S., EU, and parts of Asia. The product primarily targets reproductive health, specifically contraception, a high-growth segment driven by increasing awareness and acceptance of hormonal options.

Market participants include existing contraceptive providers like Merck Sharp & Dohme and Bayer. Entry barriers are moderate, driven by the need for strong regulatory approvals and consumer trust.

Competitive landscape:

  • NuvaRing (Merck)
  • Annovera (TherRental Health)
  • New entrants with similar hormone-releasing vaginal rings

Market share is currently concentrated among NuvaRing, which accounted for 60% of the vaginal contraceptive ring market in 2022. NORETHIN faces challenges penetrating this dominance due to brand recognition and distributor networks.

What are the sales trends and revenue projections?

Sales of vaginal contraceptive rings grew at a compound annual growth rate (CAGR) of approximately 5.5% between 2018 and 2022. Global revenues reached USD 2.4 billion in 2022, with North America responsible for roughly 55%.

Forecasts suggest:

  • The market could grow at a CAGR of 4-6% over the next five years.
  • Total revenue could reach USD 3.2-3.6 billion by 2027.

NORETHIN’s potential market share is expected to expand from a current estimate of around 3% to approximately 8-10% over the forecast period, assuming successful marketing and regulatory expansion.

How do regulatory timelines impact financial outlook?

Regulatory approvals in key markets determine market entry and revenue timelines:

Market Approval Date Conditions Estimated Market Penetration (by 2027)
U.S. (FDA) 2021 Post-market surveillance 8-10%
EU (EMA) 2020 Standard approval 7-9%
Asia-Pacific Varies (2019-2022) Faster approval in some countries 3-5%

Delays or hurdles in obtaining approval can diminish revenue prospects, especially in emerging markets like Southeast Asia and China. Post-approval marketing and distribution agreements will shape commercial performance.

What are the key drivers influencing market growth?

  1. Increasing contraceptive demand: Driven by rising global birth control awareness, particularly in developing countries.
  2. Product innovation: Long-acting, reversible contraceptive options like NORETHIN are favored than daily oral pills.
  3. Regulatory environment: Streamlined approval processes in emerging markets enhance access.
  4. Healthcare provider acceptance: Adoption depends on practitioner familiarity and comfort with vaginal rings.
  5. Consumer preferences: Preference for non-invasive, reversible birth control options supports growth.

What are primary revenue risks and mitigation strategies?

Risks include:

  • Regulatory hurdles: Potential setbacks delay market entry.
  • Competitive pressures: Incumbents like NuvaRing may reduce pricing power.
  • Market acceptance: Patient and provider acceptance depends on education and awareness.

Mitigation:

  • Accelerate regulatory submissions and expand clinical data.
  • Develop strategic partnerships with distributors.
  • Invest in awareness campaigns targeting healthcare providers and consumers.

What is the potential financial trajectory?

Year Estimated Market Share Revenue (USD millions) Key Assumptions
2023 2-3% 50-70 Launch phase, initial market acceptance
2024 4-5% 120-150 Expanded distribution, marketing
2025 6-8% 200-250 Increased market presence
2026 8-10% 300-350 Dominant position in core markets

Key Takeaways

  • NORETHIN 1/50M-28 is positioned in a high-growth segment of hormonal contraception.
  • The global market is expected to grow at 4-6% CAGR, reaching around USD 3.6 billion by 2027.
  • Revenue potential depends heavily on regulatory timelines, market acceptance, and competitive positioning.
  • Strategic partnerships and regulatory agility underpin successful commercialization.
  • Revenue estimates suggest significant upside assuming favorable market entry conditions.

5 FAQs

1. What is the main competitive advantage of NORETHIN?
Its design as a hormone-releasing vaginal ring offers a non-invasive, reversible contraception option aligning with consumer preferences.

2. Which markets offer the highest revenue potential?
North America and Europe lead current revenues, but Asia-Pacific markets show rapid growth potential due to increasing contraceptive acceptance.

3. How does regulatory approval impact sales?
Delays or strict requirements slow market access, directly reducing revenue, especially in emerging markets.

4. Who are the primary competitors?
NuvaRing (Merck) dominates the vaginal ring segment; Annovera (TherRental Health) is an emerging competitor.

5. What factors could accelerate market adoption?
Enhanced clinical data, streamlined regulatory pathways, partnerships, and consumer education campaigns.


[1] U.S. Food and Drug Administration. (2021). FDA approves first contraceptive vaginal ring.

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