Last Updated: June 9, 2026

NORLESTRIN 21 2.5/50 Drug Patent Profile


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Which patents cover Norlestrin 21 2.5/50, and what generic alternatives are available?

Norlestrin 21 2.5/50 is a drug marketed by Parke Davis and is included in one NDA.

The generic ingredient in NORLESTRIN 21 2.5/50 is ethinyl estradiol; norethindrone acetate. There are twenty-six drug master file entries for this compound. Twenty-five suppliers are listed for this compound. Additional details are available on the ethinyl estradiol; norethindrone acetate profile page.

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Questions you can ask:
  • What is the 5 year forecast for NORLESTRIN 21 2.5/50?
  • What are the global sales for NORLESTRIN 21 2.5/50?
  • What is Average Wholesale Price for NORLESTRIN 21 2.5/50?
Summary for NORLESTRIN 21 2.5/50
US Patents:0
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors:5
DailyMed Link:NORLESTRIN 21 2.5/50 at DailyMed

US Patents and Regulatory Information for NORLESTRIN 21 2.5/50

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Parke Davis NORLESTRIN 21 2.5/50 ethinyl estradiol; norethindrone acetate TABLET;ORAL-21 016852-001 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
Last updated: February 16, 2026

What Are the Market Dynamics for NORLESTRIN 21 2.5/50?

NORLESTRIN 21 2.5/50 is a combination hormone therapy used primarily for estrogen and progestin replacement. Its market is influenced by demographic trends, regulatory environment, competitive landscape, and clinical guidelines.

Demographic Trends

  • Aging Population: Globally, the elderly population increases, boosting demand for hormone replacement therapies (HRT) due to menopause-related symptoms.
  • Female Health Focus: Growing awareness around women's health issues elevates HRT utilization.

Regulatory Factors

  • Approvals: NORLESTRIN 21 2.5/50 is approved in multiple markets, including the U.S. and EU, with regulatory bodies emphasizing safety, especially cardiovascular risk and cancer concerns.
  • Reimbursement Policies: Coverage varies, impacting adoption rates.

Competitive Landscape

  • Alternatives: Other HRT options include bioidentical hormones, patches, gels, and oral formulations from companies like Pfizer, Bayer, and Teva.
  • Patent Status: Patent expiry or exclusivity influences pricing and market share.

Clinical Guidelines and Prescribing Trends

  • Guidelines: Shifts toward individualized therapy impact demand.
  • Safety Data: Ongoing studies influence prescribing behaviors.

Pricing & Reimbursement

  • Premium Pricing: NORLESTRIN 21 2.5/50's pricing aligns with specialized hormone therapies.
  • Reimbursement rates depend on local health policies; in the U.S., Medicare and private insurers influence coverage.

What Is the Financial Trajectory for NORLESTRIN 21 2.5/50?

Financial outlook depends on sales volume, pricing strategies, R&D expenses, and market penetration.

Revenue Projections

  • Market Size: Global HRT market is valued at approximately $4.2 billion (2022), expected to grow at a CAGR of 4.3% through 2030 ([1]).
  • Expected Share: Given its niche status, NORLESTRIN 21 2.5/50 could capture 2-5% of the HRT market within five years post-launch in developed regions, corresponding to $84-210 million annually.

Cost Structure

  • R&D: Initial investment varies but averages $100-200 million for new drug development, including clinical trials.
  • Manufacturing: Production costs per unit are low due to established formulations but include quality control and compliance expenses.
  • Marketing: Launch expenses range from $10-50 million, impacting near-term profitability.

Pricing Strategy & Margins

  • Price Point: Estimated at $1.50-$2.50 per day, based on comparable HRT products.
  • Gross Margins: Typically range from 60%-80%, assuming efficient manufacturing and distribution.

Market Penetration & Sales Growth

  • Launch Year: Revenue may start modest ($10-20 million), with sales doubling over three years as market awareness and prescribing increase.
  • Expansion: Entry into emerging markets could augment growth but face regulatory and reimbursement hurdles.

Risks Impacting Financial Trajectory

  • Regulatory Delays or Restrictions: Stringent safety assessments could slow approval or reduce market size.
  • Competitive Product Launches: New formulations or delivery methods might diminish NORLESTRIN’s market share.
  • Changing Guidelines: Negative safety data can lead to reimbursement cuts or usage restrictions.

Summary Table

Factor Impact Data/Notes
Market Size (2022) Approx. $4.2 billion CAGR 4.3% until 2030 ([1])
Potential Revenue (5-year forecast) $84 - $210 million 2-5% market share estimate
Launch Year Revenue $10 - $20 million Based on initial uptake
Pricing $1.50 - $2.50 per day Similar to other oral HRT therapies
Gross Margins 60%-80% Industry average
R&D Investment $100 - $200 million Typical for new hormone therapies

Key Takeaways

  • Market demand for NORLESTRIN 21 2.5/50 will grow with aging demographics and increased focus on women’s health.
  • Regulatory approval and safety data significantly influence market access and uptake.
  • Commercial success depends on competitive positioning, pricing, and reimbursement strategies.
  • The product’s financial trajectory aligns with the broader growth of the HRT market, but it faces risks from safety concerns and competitive innovations.
  • Entry into emerging markets offers growth potential but also introduces regulatory and reimbursement challenges.

FAQs

1. What factors determine the market share for NORLESTRIN 21 2.5/50?
Market share depends on regulatory approval, physician prescribing habits, competitor offerings, safety profile, and reimbursement policies.

2. How does safety data impact the financial trajectory?
Negative safety data can restrict market access, reduce demand, and lead to price reductions, thereby lowering revenue expectations.

3. What is the typical timeline for bringing a hormone therapy to market?
Development timelines range from three to seven years, depending on clinical trial complexity, regulatory review, and manufacturing readiness.

4. How does reimbursement influence sales?
Coverage decisions directly impact patient access; higher reimbursement leads to increased prescriptions and sales.

5. What risks could disrupt growth predictions?
Regulatory restrictions, emergence of better competitors, safety concerns, or changes in clinical guidelines could adversely affect sales.

References

[1] Grand View Research. Hormone Replacement Therapy Market Size, Share & Trends Analysis Report, 2022.

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