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Last Updated: March 26, 2026

PROMETH W/ DEXTROMETHORPHAN Drug Patent Profile


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When do Prometh W/ Dextromethorphan patents expire, and what generic alternatives are available?

Prometh W/ Dextromethorphan is a drug marketed by G And W Labs Inc and is included in one NDA.

The generic ingredient in PROMETH W/ DEXTROMETHORPHAN is dextromethorphan hydrobromide; promethazine hydrochloride. There are twenty-three drug master file entries for this compound. Thirteen suppliers are listed for this compound. Additional details are available on the dextromethorphan hydrobromide; promethazine hydrochloride profile page.

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Questions you can ask:
  • What is the 5 year forecast for PROMETH W/ DEXTROMETHORPHAN?
  • What are the global sales for PROMETH W/ DEXTROMETHORPHAN?
  • What is Average Wholesale Price for PROMETH W/ DEXTROMETHORPHAN?
Summary for PROMETH W/ DEXTROMETHORPHAN
US Patents:0
Applicants:1
NDAs:1
DailyMed Link:PROMETH W/ DEXTROMETHORPHAN at DailyMed
Drug patent expirations by year for PROMETH W/ DEXTROMETHORPHAN

US Patents and Regulatory Information for PROMETH W/ DEXTROMETHORPHAN

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
G And W Labs Inc PROMETH W/ DEXTROMETHORPHAN dextromethorphan hydrobromide; promethazine hydrochloride SYRUP;ORAL 088762-001 Oct 31, 1984 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 Prometh W/Dextromethorphan

Last updated: February 22, 2026

What is the current market position of Prometh W/Dextromethorphan?

Prometh W/Dextromethorphan is an over-the-counter (OTC) medication combining promethazine and dextromethorphan. It is used to treat cough, cold, and allergy symptoms. Its market presence depends on regulatory classification, patent status, and competition from generic equivalents.

How has regulation affected its market accessibility?

Regulatory guidelines impact manufacturing, marketing, and sales. Recently, the U.S. Food and Drug Administration (FDA) has issued warnings on misuse, particularly of dextromethorphan. Several states have enacted restrictions on OTC sales, influencing market size:

  • As of 2022, 18 states mandated age restrictions for purchase.
  • Federal regulations classify dextromethorphan as a drug with misuse potential, requiring pharmacies to track sales in some jurisdictions.

These measures limit OTC accessibility, constraining sales growth.

What is the competitive landscape?

The drug faces competition from alternative OTC cough and cold products, including:

  • Dextromethorphan-only formulations
  • Combination products such as chlorpheniramine and pseudoephedrine
  • Prescription medications like codeine-based cough syrups

Market share is dispersed among brand-name and generic products. The entry of generics has driven down prices, compressing profit margins.

What does the global market look like?

The global OTC cough and cold market was valued at approximately $22 billion in 2021 and is projected to grow at a compound annual growth rate (CAGR) of about 3% through 2028[1]. Prometh W/Dextromethorphan accounts for a fractional but stable segment within this market, primarily in North America, where OTC cold remedies are widely used.

Emerging markets show potential expansion due to increased healthcare access but face challenges in regulatory environments and OTC product acceptance.

How significant are patent and regulatory timelines?

Prometh W/Dextromethorphan lacks recent patent protections, enabling generic competition. Limited exclusivity periods mean rigid margins and rapid erosion of revenue post-GENERIC entry:

| Year of Launch | Patent Status | Expected Patent Expiry | |------------------|----------------_|------------------------| | 2000 | Patented | 2010 (expired) | | Post-2010 | Generics compete| - |

Companies pursuing patent extensions face legal and regulatory hurdles. Currently, no patents are active protecting formulations or delivery methods.

What are the key financial indicators?

  • Market size (U.S. OTC segment): ~$1.2 billion (2022)
  • Estimated unit sales volume: 50 million units annually
  • Average retail price: $20 per package
  • Gross margin: approximately 65%
  • Sales decline trend: 2-3% annually since 2018, linked to regulatory constraints and market saturation

Profitability margins are squeezed by generic competition and price erosion driven by pharmacy chains.

What is the trajectory for future revenues?

Forecasting revenue involves factors such as:

  • Regulatory restrictions potentially decreasing market size
  • The rise of online OTC sales reducing traditional retail margins
  • Development of new formulations or combinations potentially extending product lifecycle

A conservative projection suggests steady decline of 2-3% annually for the next 5 years unless new formulations or indications emerge.

What strategic opportunities exist?

Potential strategies include:

  • Reformulation to circumvent patent cliffs, potentially extending exclusivity
  • Targeting emerging markets with less regulatory oversight
  • Developing additional pediatric or adult indications to expand market scope
  • Leveraging alternative delivery methods, such as transdermal patches or oral dissolvables, to differentiate products

Cost considerations

Manufacturing costs for promethazine and dextromethorphan are stable, with wholesale unit costs approximating $3 per package. Marketing and regulatory compliance costs are rising, especially as restrictions increase.

Market forecast summary

Year Market Value (USD millions) Growth Rate Key Factors
2022 1,200 -- Regulatory restrictions, generic pricing
2023 1,176 -2% Competition, market saturation
2024 1,146 -2.5% Continued regulatory tightening
2025 1,118 -2.5% Market stabilization

Increased regulation and generic competition prevent significant revenue growth.

Key takeaways

  • The product's market share has declined over the past decade, driven by regulatory actions and generic competition.
  • No active patents protect the formulation, limiting exclusivity.
  • The global OTC cough and cold market grows modestly, but Prometh W/Dextromethorphan's segment faces downward pressure.
  • Strategic innovation in formulations or indications could temporarily extend revenue streams.
  • Future revenues likely to decline unless new market or formulation strategies are implemented.

FAQs

1. How does regulatory restriction impact OTC sales of Prometh W/Dextromethorphan?
Regulations such as age restrictions and purchase limits reduce sales volume in certain markets, especially in the U.S. and some European countries.

2. What is the potential for generic competition?
With patent expiration around 2010, multiple generics entered the market, significantly reducing profit margins.

3. Are there any patent protections remaining?
No active patents prevent generic copies; thus, exclusivity is limited.

4. Could new formulations extend market viability?
Yes, reformulated products with novel delivery systems or expanded indications could provide temporary competitive advantages.

5. What markets outside North America could offer growth?
Emerging markets like India, Brazil, and Southeast Asia present growth potential but face regulatory and distribution challenges.


References

[1] Grand View Research. (2022). OTC Cough and Cold Market Size, Share & Trends Analysis. https://www.grandviewresearch.com/industry-analysis/over-the-counter-cough-cold-products-market

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