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Last Updated: March 26, 2026

METHAMPEX Drug Patent Profile


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When do Methampex patents expire, and when can generic versions of Methampex launch?

Methampex is a drug marketed by Teva and is included in one NDA.

The generic ingredient in METHAMPEX is methamphetamine hydrochloride. There are six drug master file entries for this compound. Three suppliers are listed for this compound. Additional details are available on the methamphetamine hydrochloride profile page.

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Summary for METHAMPEX
US Patents:0
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors: 67
Patent Applications: 968
DailyMed Link:METHAMPEX at DailyMed
Drug patent expirations by year for METHAMPEX

US Patents and Regulatory Information for METHAMPEX

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Teva METHAMPEX methamphetamine hydrochloride TABLET;ORAL 083889-001 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 Methamphetamine-Related Drugs

Last updated: March 13, 2026

What is the current market landscape for medications related to methamphetamine use?

The market for drugs targeting methamphetamine use primarily involves treatment options for addiction and its comorbidities. There are no FDA-approved medications specifically for methamphetamine dependence. Existing pharmaceutical interventions include off-label use of medications such as bupropion, naltrexone, and mixed amphetamine salts, though their efficacy remains under clinical review.

The broader addiction treatment sector, which includes behavioral therapies and medications, is valued at approximately $4.7 billion globally in 2022, with a compound annual growth rate (CAGR) of about 5% over five years. The absence of a specific, approved anti-methamphetamine medication represents a significant market gap.

What are the key factors affecting the development and commercialization of methamphetamine treatments?

  • Regulatory Environment: Stringent controls on stimulant drugs impede rapid clinical trials and commercialization, especially for compounds that target central nervous system (CNS) pathways.

  • R&D Challenges: Developing medications effective for methamphetamine dependence faces hurdles such as high failure rates of CNS drug trials, limited understanding of addiction neurobiology, and adverse side effect profiles.

  • Unmet Medical Need: The rise in methamphetamine use, especially in North America and parts of Asia, increases urgency but also complicates the path to approval due to safety concerns.

  • Market Fragmentation: Existing addiction treatments are fragmented, involving pharmaceuticals, counseling, and harm reduction initiatives, making focused development difficult.

What are current pharmaceutical candidates and their financial implications?

Several pharmaceutical companies and biotech firms have ongoing research programs toward developing medications for methamphetamine use disorder (MUD). Key candidates include:

Candidate Developer Mechanism of Action Stage of Development Estimated Investment*
Phenmetrazine derivatives Private biotech firms Dopamine releasing agents Preclinical/early $2-10 million per project
Modafinil and derivatives Various pharmaceutical firms Wakefulness promotion, dopaminergic modulation Phase 2-3 $20-50 million
Kratom analogs Small biotech startups Mild stimulant activity Preclinical $1-5 million

*Investment estimates are approximate and vary based on project scope, stage, and company size.

Financially, few compounds have proceeded beyond early trials. Costs for clinical development of CNS drugs average $150 million to $300 million in the U.S., with each phase of trial incurring significant expenses and regulatory review periods extending up to 10 years.

What are regulatory and policy impacts on the market?

  • FDA Policies: The FDA emphasizes safety and efficacy for CNS drugs, particularly for drugs with abuse potential. Recent initiatives, such as the RESTRICT act, aim to tighten controls over synthetic stimulants.

  • Funding Programs: The U.S. government, via the NIH and SAMHSA, allocates funds for opioid addiction, with emerging grants for stimulant use disorder research, totaling over $50 million annually.

  • Legislative Changes: Policies facilitating "breakthrough therapy" designations and fast-track approval can accelerate development pathways but still face challenges specific to stimulant addiction drugs.

Future market projections

The industry anticipates incremental growth driven by increased drug abuse rates and regulatory reforms aimed at approving effective treatments.

Year Market Size for MUD Treatments (USD billion) CAGR
2023 0.5
2028 0.8 8.9%

These projections consider the potential approval of novel medications, which could catalyze market expansion.

Key Takeaways

  • No FDA-approved medications specifically treat methamphetamine use disorder.
  • The addiction treatment sector is transitioning from behavioral therapies to pharmacotherapy options.
  • High development costs and regulatory challenges slow pipeline progression.
  • Funding initiatives are increasing but remain limited relative to opioid addiction treatment.
  • Market growth depends on successful clinical trials, regulatory advances, and effective commercialization strategies.

FAQs

1. Are there approved medications for methamphetamine dependence?
No. Current treatments rely on off-label use of drugs like bupropion, naltrexone, and mixed amphetamine salts, with no FDA-approved options.

2. What are the main challenges in developing anti-methamphetamine drugs?
Issues include CNS drug trial failures, safety concerns, and the complex neurobiology of addiction.

3. How much investment is typical for early-stage CNS drug development?
Between $1 million and $10 million for preclinical candidates, with later phases requiring significantly higher capital.

4. What regulatory pathways could speed up approval?
Fast-track designations, breakthrough therapy status, and orphan drug programs can shorten review timelines under certain conditions.

5. Which regions show the highest potential for growth?
North America and Asia, driven by rising methamphetamine use and increasing government funding for addiction treatment research.


References

[1] MarketResearch.com. (2022). Global addiction treatment market analysis.
[2] U.S. Food and Drug Administration. (2022). Drug development guidances for CNS drugs.
[3] NIH.gov. (2023). Funding opportunities in stimulant use disorder research.
[4] Pharmaceutical R&D Cost Study. (2021). Average expenses for CNS drug development.
[5] Substance Abuse and Mental Health Services Administration. (2022). National surveys on drug use and health.

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