You're using a free limited version of DrugPatentWatch: Upgrade for Complete Access

Last Updated: December 11, 2025

Naltrexone hydrochloride; oxycodone hydrochloride - Generic Drug Details


✉ Email this page to a colleague

« Back to Dashboard


What are the generic drug sources for naltrexone hydrochloride; oxycodone hydrochloride and what is the scope of patent protection?

Naltrexone hydrochloride; oxycodone hydrochloride is the generic ingredient in one branded drug marketed by Pfizer and is included in one NDA. There are two patents protecting this compound. Additional information is available in the individual branded drug profile pages.

Naltrexone hydrochloride; oxycodone hydrochloride has sixteen patent family members in twelve countries.

Summary for naltrexone hydrochloride; oxycodone hydrochloride
International Patents:16
US Patents:2
Tradenames:1
Applicants:1
NDAs:1
Clinical Trials: 20
DailyMed Link:naltrexone hydrochloride; oxycodone hydrochloride at DailyMed
Recent Clinical Trials for naltrexone hydrochloride; oxycodone hydrochloride

Identify potential brand extensions & 505(b)(2) entrants

SponsorPhase
Ensysce BiosciencesPHASE1
Quotient SciencesPHASE1
University of California, IrvinePHASE2

See all naltrexone hydrochloride; oxycodone hydrochloride clinical trials

US Patents and Regulatory Information for naltrexone hydrochloride; oxycodone hydrochloride

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Pfizer TROXYCA ER naltrexone hydrochloride; oxycodone hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 207621-001 Aug 19, 2016 DISCN No No 8,685,443 ⤷  Get Started Free ⤷  Get Started Free
Pfizer TROXYCA ER naltrexone hydrochloride; oxycodone hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 207621-005 Aug 19, 2016 DISCN No No 7,815,934 ⤷  Get Started Free Y ⤷  Get Started Free
Pfizer TROXYCA ER naltrexone hydrochloride; oxycodone hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 207621-004 Aug 19, 2016 DISCN No No 8,685,443 ⤷  Get Started Free ⤷  Get Started Free
Pfizer TROXYCA ER naltrexone hydrochloride; oxycodone hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 207621-006 Aug 19, 2016 DISCN No No 7,815,934 ⤷  Get Started Free Y ⤷  Get Started Free
Pfizer TROXYCA ER naltrexone hydrochloride; oxycodone hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 207621-003 Aug 19, 2016 DISCN No No 8,685,443 ⤷  Get Started Free ⤷  Get Started Free
Pfizer TROXYCA ER naltrexone hydrochloride; oxycodone hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 207621-006 Aug 19, 2016 DISCN No No 8,685,443 ⤷  Get Started Free ⤷  Get Started Free
Pfizer TROXYCA ER naltrexone hydrochloride; oxycodone hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 207621-002 Aug 19, 2016 DISCN No No 8,685,443 ⤷  Get Started Free ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Expired US Patents for naltrexone hydrochloride; oxycodone hydrochloride

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Pfizer TROXYCA ER naltrexone hydrochloride; oxycodone hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 207621-004 Aug 19, 2016 8,685,443 ⤷  Get Started Free
Pfizer TROXYCA ER naltrexone hydrochloride; oxycodone hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 207621-001 Aug 19, 2016 8,685,443 ⤷  Get Started Free
Pfizer TROXYCA ER naltrexone hydrochloride; oxycodone hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 207621-005 Aug 19, 2016 8,685,443 ⤷  Get Started Free
Pfizer TROXYCA ER naltrexone hydrochloride; oxycodone hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 207621-003 Aug 19, 2016 8,685,443 ⤷  Get Started Free
Pfizer TROXYCA ER naltrexone hydrochloride; oxycodone hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 207621-006 Aug 19, 2016 8,685,443 ⤷  Get Started Free
Pfizer TROXYCA ER naltrexone hydrochloride; oxycodone hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 207621-002 Aug 19, 2016 8,685,443 ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

International Patents for naltrexone hydrochloride; oxycodone hydrochloride

Country Patent Number Title Estimated Expiration
European Patent Office 2422773 Séquestration de sous-unité et compositions et procédés associés (Sequestering subunit and related compositions and methods) ⤷  Get Started Free
World Intellectual Property Organization (WIPO) 2004026283 ⤷  Get Started Free
Australia 2003270778 SEQUESTERING SUBUNIT AND RELATED COMPOSITIONS AND METOHDS ⤷  Get Started Free
Denmark 1551372 ⤷  Get Started Free
Slovenia 1551372 ⤷  Get Started Free
European Patent Office 2422772 Séquestration de sous-unité et compositions et procédés associés (Sequestering subunit and related compositions and methods) ⤷  Get Started Free
European Patent Office 2422775 Séquestration de sous-unité et compositions et procédés associés (Sequestering subunit and related compositions and methods) ⤷  Get Started Free
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for naltrexone hydrochloride; oxycodone hydrochloride

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
2316456 LUC00054 Luxembourg ⤷  Get Started Free PRODUCT NAME: NALTREXONE OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, IN PARTICULAR NALTREXONE HYDROCHLORIDE, AND BUPROPION OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, IN PARTICULAR BUPROPION HYDROCHLORIDE; AUTHORISATION NUMBER AND DATE: EU/1/14/988 20150330
2316456 SPC/GB17/078 United Kingdom ⤷  Get Started Free PRODUCT NAME: NALTREXONE OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, IN PARTICULAR NALTREXONE HYDROCHLORIDE, AND BUPROPION OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, IN PARTICULAR BUPROPION HYDROCHLORIDE.; REGISTERED: UK EU/1/14/988 20150330; UK PLGB 50742/0001 20150330
2316456 2017/059 Ireland ⤷  Get Started Free PRODUCT NAME: NALTREXONE OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, IN PARTICULAR NALTREXONE HYDROCHLORIDE, AND BUPROPION OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, IN PARTICULAR BUPROPION HYDROCHLORIDE; REGISTRATION NO/DATE: EU/1/14/988 20150326
2316456 1790064-8 Sweden ⤷  Get Started Free PRODUCT NAME: NALTREXONE OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, IN PARTICULAR NALTREXONE HYDROCHLORIDE, AND BUPROPION OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, IN PARTICULAR BUPROPION HYDROCHLORIDE; REG. NO/DATE: EU/1/14/988 20150330
2316456 132017000142109 Italy ⤷  Get Started Free PRODUCT NAME: NALTREXONE/BUPROPIONE(MYSIMBA); AUTHORISATION NUMBER(S) AND DATE(S): EU/1/14/988, 20150330
2316456 2017C/064 Belgium ⤷  Get Started Free PRODUCT NAME: NALTREXONE/BUPROPION; AUTHORISATION NUMBER AND DATE: EU/1/14/988 20150330
2316456 17C1058 France ⤷  Get Started Free PRODUCT NAME: NALTREXONE OU UN SEL PHARMACEUTIQUEMENT ACCEPTABLE,EN PARTICULIER CHLORHYDRATE DE NALTREXONE ET,BUPROPION OU SEL PHARMACEUTIQUEMENT ACCEPTABLE,EN PARTICULIER CHLORHYDRATE DE BUPROPION; REGISTRATION NO/DATE: EU/1/14/988 20150330
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

Market Dynamics and Financial Trajectory for Naltrexone Hydrochloride and Oxycodone Hydrochloride

Last updated: July 28, 2025


Introduction

The pharmaceutical landscape for Naltrexone Hydrochloride and Oxycodone Hydrochloride exhibits contrasting market dynamics shaped by medical utility, regulatory considerations, societal impacts, and evolving healthcare policies. Both drugs serve critical roles within their respective domains—Naltrexone as an opioid antagonist for addiction management, and Oxycodone as a potent opioid analgesic. Their market trajectories are further influenced by shifting paradigms in pain management, addiction treatment, and regulatory oversight.


Market Overview and Applications

Naltrexone Hydrochloride functions primarily as an opioid antagonist, with FDA approval for alcohol dependence and opioid addiction. Its competitive advantage lies in its efficacy for long-term management and relapse prevention, particularly in opioid use disorder (OUD). The drug’s utility extends to off-label applications such as weight management and behavioral health, although these are less regulated.

Oxycodone Hydrochloride is a Schedule II controlled substance, integral to pain management but associated with high abuse potential. Its formulations range from immediate-release to extended-release variants, and it remains a mainstay in treating moderate to severe pain, notably in post-surgical and palliative care settings. The opioid crisis has significantly affected Oxycodone’s market, leading to shifts in prescribing patterns and regulatory restrictions.


Market Dynamics

1. Regulatory and Societal Influences

The opioid epidemic since the late 1990s has dramatically reshaped the market for both drugs. Enhanced regulatory measures, including prescribing limits, drug formulation restrictions, and increased oversight, have curtailed Oxycodone’s distribution. Public health campaigns and tighter monitoring via Prescription Drug Monitoring Programs (PDMPs) aim to reduce misuse, thereby constraining market expansion.

Conversely, regulatory pathways have become more favorable for Naltrexone, particularly with increased recognition of medication-assisted treatment (MAT) frameworks for opioid use disorder. The Drug Enforcement Agency (DEA) has prioritized treatments that reduce harm, bolstering Naltrexone’s positioning, especially as comprehensive addiction solutions gain acceptance.

2. Market Demand and Therapeutic Shifts

The struggle against opioid misuse has transitioned from primarily banning substances to promoting alternative therapies. The acceptance of non-opioid pain management options is rising; however, opioids like Oxycodone remain in high demand where pain management is unmet by alternatives. Market segmentation indicates a decline in new Oxycodone prescribing in some regions but persistent demand in specific clinical contexts.

Regarding Naltrexone, growth stems from increased awareness and uptake in addiction treatment programs. The rise of hospital and outpatient programs integrating Naltrexone therapy contributes to expanding market size, aided by improved formulations, such as long-acting injectable versions.

3. Patent Life and Generic Competition

Patent expirations have significantly influenced market dynamics. Oxycodone’s original patents expired in the late 2000s, leading to an influx of generic versions, reducing revenue for branded formulations. Naltrexone’s patent protections have prolonged exclusivity periods, but generic versions have appeared for both oral and injectable forms, intensifying competition but also expanding accessibility.

4. Development of Alternatives and Abuse Deterrents

For Oxycodone, abuse-deterrent formulations (ADFs) have been developed to mitigate misuse. These formulations aim to deter crushing and snorting, yet their efficacy remains debated. The industry continues to innovate with novel delivery systems, yet regulatory approval and production costs influence their market penetration.

In contrast, Naltrexone's newer formulations, such as extended-release injectable (Vivitrol), have seen increased adoption due to enhanced compliance and reduced misuse potential. Growing investment in developing safer, abuse-deterrent addiction therapies sustains Naltrexone's market relevance.


Financial Trajectory and Market Forecasts

1. Revenue Trends and Market Size

The global opioid analgesics market, encompassing drugs like Oxycodone, was valued at approximately USD 15 billion in 2021, with projections to grow at a CAGR of around 4-6% over the next five years, driven by persistent unmet pain management needs despite regulatory pressures [1]. However, the segment’s growth is tempered by the opioid crisis, leading to a plateau or decline in many jurisdictions.

The Naltrexone market, aligned with opioid dependence treatment, is comparatively smaller but growing. The global medication-assisted treatment (MAT) market was valued at around USD 1.5 billion in 2020, expected to expand at approximately 8-10% CAGR, supported by an increasing focus on the opioid epidemic [2].

2. Pricing Trends

Oxycodone prices are declining due to patent expirations and the proliferation of generics. Branded formulations like OxyContin have seen price erosion, while generic equivalents have offered lower-cost alternatives, impacting profit margins.

Naltrexone formulations, particularly long-acting injectables, command premium pricing, reflecting their convenience and reduced misuse potential. The injectable form Vivitrol, for instance, maintains higher price points, contributing to a relatively stable revenue stream.

3. Impact of Policy Changes and Litigation

Legislative actions such as the SUPPORT Act in the US have mandated increased oversight of opioid distribution, influencing manufacturers and distributors' strategies. Opioid litigation resulting in multi-billion-dollar settlements has increased costs, hindered market expansion, and prompted firms to innovate or pivot toward alternative pain and addiction management agents.

4. Future Market Drivers

  • For Oxycodone: Continued decline in prescriptions, increased adoption of abuse-deterrent formulations, and shifting physician preferences toward non-opioid therapies will shape revenue. Market saturation with generics limits upside potential unless new formulations or indications emerge.

  • For Naltrexone: Growing demand for effective addiction treatments, enhanced formulations with improved compliance, and expanded access in public health programs positively influence outlooks. Investment in new delivery systems and combination therapies represents a significant opportunity.

5. Regional Variations

North America dominates both markets, driven by high opioid use and addressing addiction epidemics. Emerging markets in Asia-Pacific and Latin America show potential, especially for Naltrexone, as healthcare infrastructure improves and awareness campaigns proliferate.


Conclusion and Market Outlook

The juxtaposition of Naltrexone Hydrochloride and Oxycodone Hydrochloride encapsulates the evolving landscape of pain management and addiction treatment. While Oxycodone’s market faces significant headwinds due to regulatory and societal pressures, niche opportunities exist within specialized formulations and markets with higher unmet needs. Conversely, Naltrexone’s prospects are buoyed by a global shift toward harm reduction and comprehensive addiction management strategies.

The financial trajectory suggests a tightening in Oxycodone revenues, emphasizing the importance of innovation, abuse-deterrent technologies, and alternative therapies. For Naltrexone, opportunities lie in expanding accessibility, integrating with digital health tools, and developing long-acting formulations tailored for sustained compliance.

Stakeholders, including pharmaceutical companies, policymakers, and healthcare providers, must navigate these dynamics prudently. Strategic investments in R&D, regulatory engagement, and market diversification will be key to capitalizing on emerging opportunities.


Key Takeaways

  • Regulatory and societal pressures are constraining the growth of Oxycodone, leading to a decline in new prescriptions and revenues, with increased focus on abuse-deterrent formulations.
  • Naltrexone benefits from rising awareness of addiction treatment needs, supporting stable growth, especially in long-acting injectable formulations.
  • Patent expirations have accelerated generic competition for Oxycodone, reducing margins but fostering price competition; Naltrexone’s newer formulations maintain higher profitability.
  • Regional variations influence market prospects, with North America leading, but burgeoning growth in emerging markets for addiction therapies.
  • Innovation in formulations and delivery methods will be pivotal in maintaining relevance, especially amidst evolving regulatory landscapes and public health priorities.

FAQs

1. How has the opioid crisis impacted the market for Oxycodone?
The opioid epidemic has led to tightened regulations, prescription restrictions, and public health campaigns, resulting in decreased demand for Oxycodone in many regions. This shift aims to curb misuse but also reduces revenue opportunities for manufacturers, especially those reliant on new prescriptions.

2. What role does Naltrexone play in modern addiction treatment?
Naltrexone serves as an opioid antagonist that blocks euphoric effects, aiding relapse prevention. Its injectable long-acting formulations have improved patient adherence, making it a vital component of medication-assisted treatment (MAT) programs.

3. Are there emerging alternatives to Oxycodone for pain management?
Yes. Non-opioid analgesics, gabapentinoids, nerve blocks, and emerging therapies like cannabinoids are increasingly used to manage pain, reducing reliance on opioids.

4. How do regulatory changes influence pricing and market access for these drugs?
Stringent regulations and legal actions increase compliance costs, influence prescribing behaviors, and can restrict market access. Abuse-deterrent formulations and safer delivery systems are often required to meet regulatory standards.

5. What are the growth prospects for Naltrexone in emerging markets?
Expanding healthcare infrastructure, increasing awareness of addiction treatment, and government initiatives create promising opportunities for Naltrexone adoption in regions like Asia-Pacific and Latin America.


References

[1] MarketResearch.com, "Global Opioid Analgesics Market Size & Trends," 2022.
[2] Grand View Research, "Medication-Assisted Treatment Market Size, Share & Trends," 2021.

More… ↓

⤷  Get Started Free

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.