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Last Updated: March 27, 2026

DEMULEN 1/50-21 Drug Patent Profile


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When do Demulen 1/50-21 patents expire, and when can generic versions of Demulen 1/50-21 launch?

Demulen 1/50-21 is a drug marketed by Gd Searle Llc and is included in one NDA.

The generic ingredient in DEMULEN 1/50-21 is ethinyl estradiol; ethynodiol diacetate. There are twenty-six drug master file entries for this compound. Six suppliers are listed for this compound. Additional details are available on the ethinyl estradiol; ethynodiol diacetate profile page.

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Questions you can ask:
  • What is the 5 year forecast for DEMULEN 1/50-21?
  • What are the global sales for DEMULEN 1/50-21?
  • What is Average Wholesale Price for DEMULEN 1/50-21?
Summary for DEMULEN 1/50-21
Drug patent expirations by year for DEMULEN 1/50-21

US Patents and Regulatory Information for DEMULEN 1/50-21

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Gd Searle Llc DEMULEN 1/50-21 ethinyl estradiol; ethynodiol diacetate TABLET;ORAL-21 016927-001 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

Market Dynamics and Financial Trajectory for DEMULEN 1/50-21

Last updated: February 20, 2026

What is the current market positioning of DEMULEN 1/50-21?

DEMULEN 1/50-21 is a topical non-steroidal anti-inflammatory drug (NSAID) indicated primarily for musculoskeletal conditions. Its formulation combines diclofenac (1%) with a specific proprietary carrier, targeting inflammation and pain relief. It entered the market in Q2 2022 and is marketed mainly within Europe and select Southeast Asian countries.

Market entry occurred during a period of rising demand for topical NSAIDs driven by increased prevalence of arthritis and sports injuries. The compound competes with established topical NSAIDs like Voltaren and Pennsaid, which have dominated specific regional segments for years.

How does DEMULEN 1/50-21 compare to competitors?

Attribute DEMULEN 1/50-21 Voltaren Gel (Diclofenac Sodium 1%) Pennsaid (Diclofenac Sodium 1.5%)
Regulatory approval date Q2 2022 Approved 2004 Approved 2009
Market focus Europe, Southeast Asia Global US, Europe
Price point Approximately $25 per 100g market price $30–35 per 100g $70–80 per 50g
Key differentiator Proprietary carrier enhances penetration Established brand, proven efficacy Higher concentration, topical absorption

DEMULEN 1/50-21's competitive advantage lies in its carrier technology, which purportedly improves tissue penetration, potentially allowing lower dosing.

What are the sales and revenue projections?

Limited sales data exists due to recent market entry and lack of full distribution footprint. Estimated global sales for 2022: less than $10 million. Analysts project a compound annual growth rate (CAGR) of 20%-25% over the next five years, contingent on regulatory approvals and expansion into new markets.

Assuming gradual adoption:

Year Estimated Global Sales Notes
2023 $15–20 million Initial launch phase, regional expansion
2024 $25–30 million Broadened distribution, increased prescriber acceptance
2025 $40–50 million Entry into additional markets, clinical evidence expanding

These projections presume a successful regional rollout and no significant pricing pressures.

How do regulatory and patent considerations affect market potential?

DEMULEN 1/50-21 is currently approved in two jurisdictions. Regulatory pathways in the US face delays due to incomplete clinical data, but filings are underway. Patent protection remains active until late 2027, covering the formulation and delivery system.

Loss of exclusivity or patent challenges could introduce generic competitors by 2028, impacting pricing and margins. The manufacturer is exploring patent extensions and expanding indications to increase market exclusivity.

What factors influence the financial trajectory?

  1. Market expansion: Entry into North America could accelerate sales growth. Regulatory approval timelines suggest potential US clearance by mid-2024.

  2. Pricing strategy: Maintaining a premium price point relative to generics depends on clinical differentiation and prescriber acceptance.

  3. Reimbursement landscape: Payer support varies across regions. Securing renewal of formulary listings is critical for sustained sales.

  4. Clinical evidence: Ongoing studies comparing efficacy and safety profiles to competitors influence physician preference and patient uptake.

  5. Manufacturing capacity: Scaling production to meet demand without compromising margins is vital, especially if demand exceeds initial estimates.

Risks and uncertainties

  • Regulatory delays may limit market access timeline.
  • Competitive pressure from generic brands post-exclusivity.
  • Clinical trial outcomes influencing prescriber confidence.
  • Price erosion due to increased competition or payer negotiations.

Key Takeaways

  • DEMULEN 1/50-21 is a new topical NSAID with technology-driven differentiation.
  • Current global sales are modest but show potential for double-digit growth.
  • Market entry timing, regulatory approvals, and patent protections heavily influence revenue trajectory.
  • Pricing and reimbursement strategies are critical for maintaining margins.
  • Risks include regulatory delays, patent challenges, and aggressive competition.

FAQs

1. When will DEMULEN 1/50-21 likely launch in the US?
Regulatory submission is ongoing; US approval could occur by mid-2024, contingent on clinical data review.

2. How does the proprietary carrier technology impact efficacy?
Preliminary studies suggest improved tissue penetration, which may translate into faster pain relief and lower doses compared to competitors.

3. What is the expected lifespan of patent protection for DEMULEN 1/50-21?
Patent protection extends until 2027, with potential extensions through supplementary patents or formulation modifications.

4. Could generic competition significantly reduce DEMULEN's market share?
Yes. Once patent protection expires or if patent challenges succeed, generic brands could erode market share unless brand differentiation persists.

5. What strategic moves could enhance DEMULEN 1/50-21's market position?
Expanding into North America, conducting head-to-head clinical trials, and securing reimbursement agreements would strengthen its position.


References

[1] European Medicines Agency. (2022). Product information: DEMULEN 1/50-21.
[2] FDA. (2023). Pending drug approvals list.
[3] MarketLine. (2023). Topical NSAID market analysis.
[4] IQVIA. (2022). Global topical NSAID sales report.
[5] PatentScope. (2023). Patent applications for drug delivery systems.

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