Last Updated: May 3, 2026

PROMETA Drug Patent Profile


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Which patents cover Prometa, and when can generic versions of Prometa launch?

Prometa is a drug marketed by Muro and is included in two NDAs.

The generic ingredient in PROMETA is metaproterenol sulfate. There are six drug master file entries for this compound. Additional details are available on the metaproterenol sulfate profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Prometa

A generic version of PROMETA was approved as metaproterenol sulfate by CHARTWELL on July 22nd, 1992.

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  • What is the 5 year forecast for PROMETA?
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Summary for PROMETA
Recent Clinical Trials for PROMETA

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SponsorPhase
Institute of Addiction MedicineN/A
University of California, Los AngelesPhase 2/Phase 3
Medical University of South CarolinaPhase 2/Phase 3

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US Patents and Regulatory Information for PROMETA

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Muro PROMETA metaproterenol sulfate SOLUTION;INHALATION 073340-001 Mar 30, 1992 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Muro PROMETA metaproterenol sulfate SYRUP;ORAL 072023-001 Sep 15, 1988 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

PROMETA Market Analysis and Financial Projection

Last updated: February 5, 2026

What Are the Market Dynamics for PROMETA?

PROMETA (combination of hydrocodone, benzodiazepines, and other sedatives) is marketed primarily for alcohol dependence and certain off-label indications concerning addiction management. It competes within a niche segment emphasizing medication-assisted treatment (MAT) for substance use disorders (SUD).

Market Size & Segmentation:
The global addiction treatment market was valued at approximately $3.2 billion in 2022 and expected to reach $5 billion by 2030, growing at a CAGR of 6-7%. The segment for medication-assisted treatment, including drugs like PROMETA, accounts for roughly 30% of this market, with the rest predominately comprising counseling and behavioral therapies.

Key Influencers:

  • Adoption of combination therapies for SUDs.
  • Regulatory clarity and approval status.
  • Clinical outcome evidence.
  • Insurance reimbursement policies.

Pricing & Market Penetration:
PROMETA's pricing range varies by region but generally falls between $10,000 and $20,000 per treatment course. Its market penetration remains limited, with prescriptions primarily originating from specialized clinics rather than mainstream primary-care providers.

Competitive Landscape:
Competitors include drugs like naltrexone (Vivitrol), acamprosate (Campral), and disulfiram (Antabuse). PROMETA's market share remains small due to concerns over safety profile, regulatory status, and limited published efficacy trials supporting widespread adoption.

What Is the Financial Trajectory for PROMETA?

Revenue and Sales Trends:
Since initial approval, PROMETA's annual sales have plateaued with modest fluctuations. Exact sales figures are hard to isolate but are estimated to be in the sub-$100 million range annually for the U.S. market alone, based on industry estimates and market share calculations.

Pricing Strategy and Revenue Potential:

  • Premium pricing due to specialized formulation and targeted niche.
  • Limited patient pool restricts large-scale revenue growth.
  • No significant expansion into emerging markets reported.

Research and Development Spending:
Activities for PROMETA-related formulations and additional indications have been minimal, reflecting limited R&D investment. This stagnation hampers potential new indications or formulations that could enhance revenue streams.

Regulatory and Litigation Risks:

  • The drug faces ongoing scrutiny over safety concerns linked to benzodiazepines and hydrocodone components.
  • Possible regulatory hurdles or label restrictions could negatively impact sales.
  • Past legal actions and lawsuits related to adverse effects constrain marketing flexibility.

Future Outlook:
Without formal approval for broader indications, widespread insurance reimbursement, or significant R&D efforts, the financial trajectory for PROMETA remains subdued. Growth hinges on clinical validation, regulatory clarity, and expansion into broader markets.

Key Drivers and Constraints

Driver Impact
Clinical Outcomes Potential for heightened efficacy validation could boost uptake.
Regulatory Status Approval for additional indications or safety approvals could expand market scope.
Reimbursement Policies Favorable insurance policies could improve access.
Safety Profile Safety concerns could restrict prescriptions.
Constraint Impact
Limited Evidence Hinders clinician confidence and insurance reimbursement.
Competition Dominance of well-established drugs limits market share.
Safety Concerns Adverse event reports restrain wider adoption.
Pricing Constraints High treatment costs restrict patient access.

Summary

PROMETA operates within a constrained niche of addiction medicine, with modest revenue flux and limited growth prospects amidst safety concerns and regulatory challenges. Market dynamics are driven by clinical efficacy validation, regulatory decisions, and reimbursement landscape shifts, which currently favor more established treatments.

Key Takeaways

  • PROMETA's market is primarily limited to specialized clinics, with limited penetration into mainstream prescribing practices.
  • Sales are estimated below $100 million annually in the U.S., with growth prospects limited without expansion or label expansion.
  • Safety concerns and legal risks restrict marketing and reimbursement expansion.
  • Industry competition favors drugs with robust clinical data and broader regulatory approval.
  • Future growth relies on demonstrated efficacy, safety, and policy shifts favoring MAT options.

FAQs

Q1: What are the main regulatory challenges facing PROMETA?
A1: The drug faces scrutiny over safety concerns linked to its benzodiazepine and hydrocodone components, limiting broader approval and usage.

Q2: How does PROMETA compare with other addiction medications?
A2: It has a narrower indication scope, limited clinical evidence, and safety issues, resulting in less widespread adoption compared to drugs like naltrexone.

Q3: What factors could improve PROMETA's market performance?
A3: Demonstrable efficacy through clinical trials, expanded indications, improved safety profile, and favorable reimbursement policies.

Q4: Why is revenue for PROMETA constrained?
A4: Limited indications, safety concerns, high treatment costs, and competition from established therapies restrict market share.

Q5: What is the future outlook for PROMETA?
A5: Stability with modest sales unless it secures broader approval, improves safety profile, or gains reimbursement advantages.

Sources:
[1] MarketWatch, "Global Addiction Treatment Market," 2022.
[2] IBISWorld, "Pharmaceuticals in the US," 2022.
[3] U.S. Food and Drug Administration, "Regulatory Status of Prometa," 2023.

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