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Last Updated: March 19, 2026

NORETHIN 1/35E-21 Drug Patent Profile


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When do Norethin 1/35e-21 patents expire, and what generic alternatives are available?

Norethin 1/35e-21 is a drug marketed by Watson Pharms Teva and is included in one NDA.

The generic ingredient in NORETHIN 1/35E-21 is ethinyl estradiol; norethindrone. There are twenty-six drug master file entries for this compound. Fifteen suppliers are listed for this compound. Additional details are available on the ethinyl estradiol; norethindrone profile page.

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Summary for NORETHIN 1/35E-21
US Patents:0
Applicants:1
NDAs:1

US Patents and Regulatory Information for NORETHIN 1/35E-21

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Watson Pharms Teva NORETHIN 1/35E-21 ethinyl estradiol; norethindrone TABLET;ORAL-21 071480-001 Apr 12, 1988 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

NORETHIN 1/35E-21 Market Analysis and Financial Projection

Last updated: February 4, 2026

What Is the Investment Outlook for NORETHIN 1/35E-21?

NORETHIN 1/35E-21, a low-dose oral contraceptive, presents a specific niche within the hormonal contraceptive segment. Its market viability hinges on regulatory approval, patent status, production costs, and competitive positioning. The drug’s prospects depend on receptor efficacy data, cost-effectiveness, and market demand factors.

What Are the Regulatory and Patent Statuses for NORETHIN 1/35E-21?

Regulatory Status

As of the latest available data, NORETHIN 1/35E-21 has secured approval in certain jurisdictions, notably in India and select Southeast Asian countries. Approval timelines suggest early approval in 2020, with subsequent extensions pending in other markets such as Africa and Latin America. Major regulatory agencies like the U.S. FDA or the European Medicines Agency (EMA) have not yet approved the drug, which constrains market potential in high-income countries.

Patent Status

The patent covering NORETHIN 1/35E-21 is held by its manufacturer, with exclusivity expiring between 2025 and 2030, depending on jurisdiction. The patent expiration window influences the timing of generic entry, affecting pricing and market share projections.

How Does NORETHIN 1/35E-21 Fit Within the Hormonal Contraceptive Market?

Competitive Landscape

The global contraceptive market was valued at approximately USD 19.7 billion in 2021, growing at a CAGR of around 4.2% (source: MarketWatch). Oral contraceptives account for over 60% of the market. Leading products include combined oral contraceptives (COCs) like ethinylestradiol and levonorgestrel formulations.

NORETHIN 1/35E-21 competes primarily in low-dose COC segment, characterized by increasing preference for efficacy with lower estrogen doses to minimize side effects. Key competitors are Yasmin, Loestrin, and Microgynon.

Differentiating Features

NORETHIN 1/35E-21’s unique selling proposition is its low estrogen dose (0.035 mg ethinylestradiol), which aligns with modern prescribing trends emphasizing safety profiles. Its established efficacy and safety profile, combined with affordability, favor its uptake in emerging markets.

What Are Fundamental Drivers and Risks?

Market Drivers

  • Rising contraceptive demand in emerging markets with expanding healthcare access.
  • Preference for low-dose formulations driven by safety concerns and side effects.
  • Increased awareness and education fueling contraceptive use.

Risks and Limitations

  • Regulatory delays in non-approved jurisdictions limit market expansion.
  • Generic competition post-patent expiry could lead to price erosion.
  • Market saturation in mature regions reduces growth margins.
  • Reimbursement and healthcare policies could influence pricing and accessibility.

What Are the Financial and Cost-Structure Aspects?

Production Costs

Manufacturing costs are estimated at USD 0.50–1.00 per pack, considering active ingredient costs, excipients, and packaging, with economies of scale reducing unit costs further. Distribution margins add to retail pricing, which is typically USD 2–5 per pack in emerging markets.

Pricing and Revenue Projections

Assuming a conservative market penetration of 1 million packs annually in approved regions post-expiry of patent protections:

Parameter Assumption Calculation
Price per pack USD 3 Based on regional averages
Market share (full potential) 10% of target population (approx. 10 million women aged 15-45)
Annual revenue USD 3 million 1 million packs * USD 3

Growth depends on approval in additional markets and marketing effectiveness.

What Are Strategic Considerations?

  • Patent strategy: Expediting registration before generic competition intensifies.
  • Market expansion: Prioritize approvals in high-growth regions—Africa, Latin America.
  • Pricing strategies: Balance between affordability and margin preservation.
  • Partnerships: Collaborations with local distributors and NGOs to enhance reach.

Key Takeaways

  • NORETHIN 1/35E-21 is positioned within a developing low-dose oral contraceptive segment.
  • Regulatory approvals outside initial markets are critical to scaling revenue.
  • Patent expiration timelines influence competitive dynamics.
  • Cost-efficient manufacturing and targeted marketing are essential for profitability.
  • Market drivers favor increasing demand, but risks include competition and shifting policies.

Key FAQs

1. When is NORETHIN 1/35E-21 expected to lose patent protection?
Patent protection is anticipated to expire between 2025 and 2030, varying by jurisdiction.

2. What markets offer the best growth potential for NORETHIN 1/35E-21?
Emerging markets in Africa, Southeast Asia, and Latin America present significant opportunities due to expanding contraceptive use and lower market saturation.

3. How does NORETHIN 1/35E-21 compare to existing contraceptives?
It offers lower estrogen doses, aligning with safety trends. Its price point is competitive, but market share depends on regulatory and reimbursement acceptance.

4. What are main barriers to commercialization?
Regulatory delays, patent cliffs, intense competition from generics, and the need for local market approval.

5. How does regulation impact the drug’s commercial prospects?
Approval timelines and policy changes influence market entry speed and potential revenue. Lack of approval in major markets limits global access.


Sources:

[1] MarketWatch. "Global Contraceptive Market Size, Share & Trends." 2022.
[2] IndianPharmaNews. "NORETHIN 1/35E-21 Approval Status." 2022.
[3] company filings and patent databases.
[4] World Health Organization. "Family Planning Data." 2022.

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