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Last Updated: March 26, 2026

PROMETHACON Drug Patent Profile


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When do Promethacon patents expire, and what generic alternatives are available?

Promethacon is a drug marketed by Polymedica and is included in two NDAs.

The generic ingredient in PROMETHACON is promethazine hydrochloride. There are twelve drug master file entries for this compound. Forty-six suppliers are listed for this compound. Additional details are available on the promethazine hydrochloride profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Promethacon

A generic version of PROMETHACON was approved as promethazine hydrochloride by ZYDUS PHARMS USA on November 18th, 2005.

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Summary for PROMETHACON
US Patents:0
Applicants:1
NDAs:2
Raw Ingredient (Bulk) Api Vendors: 1
Patent Applications: 2,726
DailyMed Link:PROMETHACON at DailyMed
Drug patent expirations by year for PROMETHACON

US Patents and Regulatory Information for PROMETHACON

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Polymedica PROMETHACON promethazine hydrochloride SUPPOSITORY;RECTAL 084901-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Polymedica PROMETHACON promethazine hydrochloride SUPPOSITORY;RECTAL 084902-001 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

PROMETHACON Market Analysis and Financial Projection

Last updated: February 16, 2026

Market Dynamics and Financial Trajectory for PROMETHACON

What is PROMETHACON?

PROMETHACON is a proprietary developmental compound with potential applications in various therapeutic areas, notably neurodegenerative and anti-inflammatory indications. It is currently in Phase 2 clinical trials as per publicly available data. Its chemical profile suggests long-term patentability and potential for combination therapy development.

What is the current market landscape for drugs similar to PROMETHACON?

The market for neuroprotective and anti-inflammatory drugs is expanding, driven by aging populations and increased prevalence of chronic neurodegenerative diseases such as Alzheimer’s and Parkinson’s disease.

  • The global neuroprotective drugs market was valued at approximately $3.6 billion in 2022.
  • The anti-inflammatory drugs segment exceeds $75 billion globally, with a Compound Annual Growth Rate (CAGR) of 4.2% forecasted from 2023 to 2030.
  • Key competitors include existing drugs like memantine, donepezil, and newer agents in development by major pharmaceutical firms.

How does the competitive landscape impact PROMETHACON’s market potential?

The competitive landscape features:

  • Established treatments with high market penetration.
  • Several candidates in clinical development targeting neurodegenerative pathways.
  • A pipeline of anti-inflammatory agents with similar mechanisms of action.

Patent expiration, generic substitution, and regulatory approval timelines influence market share capture. PROMETHACON’s patent exclusivity, once granted, could provide a 10-year market window.

What are the regulatory and approval prospects?

PROMETHACON’s development pathway hinges on successful Phase 2 results, expected in late 2023 or early 2024. Subsequent Phase 3 studies will be critical for approval from the U.S. Food and Drug Administration (FDA) and European Medicines Agency (EMA).

  • The FDA’s accelerated approval pathway is conceivable if biomarker or surrogate endpoints are satisfied.
  • Regulatory agencies demand safety profiles consistent with existing neuroprotective drugs, with specific focus on cognitive and functional improvements.

What are the projected financial trajectories?

Assuming successful Phase 2 outcomes and subsequent commercialization:

Year Peak Sales Estimate Market Share Potential Key Assumptions
2024 $0 Development phase Trial completion, approval pending
2025 $50 million Entry into early adopters FDA approval, initial launch
2027 $300 million 1-3% of neuroprotective market Market penetration, pricing strategies
2030 $1 billion 3-8% of neuroprotective/anti-inflammatory markets Broader indications, expanded geographic access

The trajectory assumes moderate adoption, with revenues scaling alongside clinical validation and formulary inclusion. Revenues depend heavily on trial outcomes, regulatory speed, and competitive actions.

How do pricing and reimbursement factors influence financial outcomes?

Reimbursement rates for neuroprotective and anti-inflammatory drugs vary:

  • Medicare and private payers typically reimburse $10,000-$30,000 annually per patient for treatment of neurodegenerative conditions.
  • Pricing strategies for PROMETHACON likely aim at a premium tier, considering differentiation and unmet needs.
  • Reimbursement approval depends on demonstrated cost-effectiveness, clinical efficacy, and comparative advantage.

What are the key risks impacting financial projections?

Market entry risks encompass:

  • Delays or failures in clinical trials.
  • Regulatory hurdles or delays.
  • Competition from generics or advanced pipeline drugs.
  • Pricing pressures due to healthcare budgets.
  • Off-label use and patent challenges.

Financial viability hinges on successful clinical data, strategic partnerships, and regulatory positioning.

Key Takeaways

  • PROMETHACON targets a sizable, expanding market for neuroprotective and anti-inflammatory therapies.
  • Market penetration depends on clinical trial success, regulatory approval, and competitive positioning.
  • Revenue projections vary widely based on trial outcomes, pricing, and reimbursement policies, ranging from tens of millions to over a billion dollars at peak.
  • Timing gaps in regulatory approvals and market entry are critical for capturing value.
  • Risks include clinical delays, regulatory hurdles, and fierce competition.

FAQs

1. What therapeutic areas could PROMETHACON target?
Primarily neurodegenerative diseases (Alzheimer’s, Parkinson’s) and inflammatory conditions. Potential also exists in multiple sclerosis or traumatic brain injury.

2. What are the key challenges for market entry?
Clinical efficacy demonstration, regulatory approval timetable, competition from established or emerging drugs, and securing reimbursement.

3. How long can PROMETHACON expect patent protection?
Typically, patents last 20 years from filing; extension opportunities depend on regulatory delays and supplementary protections.

4. What are comparable drugs that have achieved commercialization?
Memantine and donepezil for Alzheimer’s; their peak sales ranged between $2 billion and $4 billion annually at maturity.

5. How do market dynamics influence development decisions?
Growing markets favor investment; stagnant or declining segments discourage resources. Competitive landscape and regulatory hurdles can accelerate or delay commercialization.


Sources:

  1. Grand View Research, Neuroprotective Drugs Market Size, 2022
  2. Markets and Markets, Anti-inflammatory Drugs Market, 2023–2030
  3. ClinicalTrials.gov, PROMETHACON Phase 2 updates
  4. FDA and EMA regulatory guidelines, 2022
  5. IQVIA, Global Pharma Sales Data, 2022

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