You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: December 12, 2025

Halothane - Generic Drug Details


✉ Email this page to a colleague

« Back to Dashboard


What are the generic drug sources for halothane and what is the scope of patent protection?

Halothane is the generic ingredient in two branded drugs marketed by Wyeth Ayerst, BH, Halocarbon, and Hospira, and is included in four NDAs. Additional information is available in the individual branded drug profile pages.

There are four drug master file entries for halothane.

Summary for halothane
Recent Clinical Trials for halothane

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

SponsorPhase
Zagazig UniversityNA
Benha UniversityNA
Cairo UniversityPhase 1/Phase 2

See all halothane clinical trials

Medical Subject Heading (MeSH) Categories for halothane
Anatomical Therapeutic Chemical (ATC) Classes for halothane

US Patents and Regulatory Information for halothane

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Bh HALOTHANE halothane LIQUID;INHALATION 084977-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Halocarbon HALOTHANE halothane LIQUID;INHALATION 080810-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Wyeth Ayerst FLUOTHANE halothane LIQUID;INHALATION 011338-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Hospira HALOTHANE halothane LIQUID;INHALATION 083254-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  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

Market Dynamics and Financial Trajectory for the Pharmaceutical Drug: Halothane

Last updated: July 28, 2025

Introduction

Halothane, historically a prominent inhalation anesthetic, has experienced significant shifts in its market presence and financial trajectory. Once a staple in surgical anesthesia, its prominence has waned due to safety concerns and emerging alternatives. This analysis examines the current market landscape, regulatory influences, manufacturing trends, and future prospects for halothane, providing critical insights for stakeholders.

Historical Context and Regulatory Landscape

Introduced in the 1950s, halothane became the anesthetic of choice, prized for its rapid induction and recovery profile [1]. However, its association with hepatotoxicity—most notably halothane hepatitis—prompted regulatory scrutiny globally. The U.S. Food and Drug Administration (FDA) issued warnings in the 1980s regarding its safety profile, leading to decreased use in many regions [2].

Regulatory agencies across Europe, North America, and Asia have implemented stringent controls, often resulting in phased withdrawal or restricted use. The European Medicines Agency (EMA) effectively phased out halothane for human use in favor of newer agents with improved safety profiles, such as sevoflurane and desflurane [3]. The decline in regulatory approvals directly impacts the product's market size and commercial viability.

Market Dynamics

Supply Chain and Manufacturing Trends

While many manufacturers discontinued halothane production in developed nations, some continue to supply it in emerging markets where anesthesia infrastructure is less modernized and regulatory restrictions are less stringent. The production process involves complex synthesis steps incorporating tetrafluoroethylene, making manufacturing sensitive to environmental and safety regulations.

Global manufacturing has shifted toward alternative anesthetics, notably desflurane and sevoflurane, which offer improved safety and efficacy profiles. The global anesthetic market is projected to grow at a compound annual growth rate (CAGR) of approximately 6% through 2028, driven by rising surgical procedures, aging populations, and expanding healthcare infrastructure, particularly in Asia Pacific [4]. However, halothane's market share remains minimal compared to these newer agents.

Market Segmentation and Geographic Trends

Geographically, halothane retains marginal relevance primarily in low-income regions, including parts of Africa and Southeast Asia, where cost constraints and legacy practices sustain its use. Developed markets have largely phased out halothane, favoring inhalational agents with better safety margins.

In these regions, the demand for halothane is influenced by local regulatory policies, healthcare infrastructure, and availability of alternatives. The relatively low cost of halothane compared to newer anesthetics sustains its presence, albeit on a diminishing trajectory.

Competitive and Substitution Dynamics

The substitution effect is a dominant force shaping halothane’s decline. Modern inhalational anesthetics—such as sevoflurane and desflurane—offer faster induction, better control over depth of anesthesia, and reduced side-effect profiles. As anesthetic protocols evolve, clinicians increasingly prefer these agents.

Additionally, the rise of intravenous anesthesia modalities, including propofol-based techniques, narrows the role of volatile anesthetics like halothane. Hospital procurement policies favor agents with extensive safety data, further constricting halothane's market presence.

Financial Trajectory and Investment Outlook

Current Market Valuation

Given the regulatory restrictions and the decline in global use, halothane's commercial market value has diminished significantly. Its revenue contribution for pharmaceutical companies is minimal, primarily derived from legacy contracts or niche markets. For instance, a 2021 market report estimated the global inhalational anesthetic market at approximately USD 900 million, with sevoflurane and desflurane dominating upwards of 70% of sales [4]. Halothane constitutes less than 5%, mainly in low-resource settings.

Research & Development (R&D) and Intellectual Property

There is limited R&D activity focused on halothane. The drug’s patent protection has long expired, and there is little incentive for pharmaceutical companies to invest in reformulation or new production. Safety concerns and the availability of superior alternatives further deter innovation.

Future Revenue Potential

The future financial trajectory for halothane hinges on regulatory decisions, regional demand, and manufacturing costs. In emerging markets where regulatory oversight remains lax and cost considerations dominate, minor residual demand may sustain limited revenues.

However, global stakeholders anticipate continued decline. The World Health Organization (WHO) recommends phasing out older anesthetics with safety concerns, further aligning with a decreasing financial outlook.

Investment Considerations

Investors are generally advised to perceive halothane as a declining asset class. Restricted regulatory approvals and substitution by advanced agents reduce commercial incentives. Companies holding manufacturing licenses may consider discontinuation or repurposing of production for alternative compounds.

Market Outlook and Future Trends

  • Decreasing Use: Regulatory impacts and clinical preferences favor newer agents, making halothane increasingly obsolete.
  • Emerging Markets: Limited demand persists where affordability and legacy practices dominate, but these markets are unlikely to drive significant growth.
  • Environmental Regulations: Halothane is a potent greenhouse gas, drawing increased regulatory pressure globally. Alternative anesthetics with lower environmental impact are replacing halothane, further diminishing its appeal.
  • Shift to Intravenous and Targeted Anesthesia: Innovations in anesthesia techniques diminish the reliance on volatile anesthetics, negatively impacting halothane's market potential.

Key Takeaways

  • Halothane’s market share has declined markedly due to safety issues, regulatory restrictions, and technological advancements.
  • The drug’s manufacturing persists mainly in low-resource regions, but demand is expected to continue shrinking.
  • Future financial prospects are bleak, with minimal investments and negligible revenue contributions anticipated.
  • Market dynamics favor newer, safer, and environmentally friendly inhalants, aligning with global healthcare priorities.
  • Stakeholders should approach halothane from a regulatory compliance and legacy contract perspective, rather than as a growth opportunity.

FAQs

1. Why was halothane phased out in many developed markets?
Due to its association with hepatotoxicity—especially halothane hepatitis—and emergence of safer alternatives like sevoflurane, regulators restricted or banned halothane, leading to its phased withdrawal [2].

2. Are there any current manufacturing efforts for halothane?
Limited manufacturing persists, primarily in regions with lax regulatory oversight. Most global production has ceased, focusing instead on legacy supply and niche markets.

3. Can halothane be used safely today?
Current safety standards and clinical guidelines discourage its use. While it remains available in some areas, its safety profile makes it less favored compared to newer agents.

4. What are the environmental implications of halothane?
Halothane is a potent greenhouse gas with high ozone-depleting potential. Environmental regulations are increasingly discouraging its use, favoring agents with a lower environmental footprint.

5. What does the future hold for companies holding halothane assets?
Given regulatory decline and market substitution, financial prospects are limited. Companies might consider discontinuing production, repurposing manufacturing facilities, or reallocating resources to safer, more profitable anesthetic agents.


References

[1] Riordan JF. "The History of Halothane." Anesthesia & Analgesia, 1984.
[2] FDA Drug Safety Communications. "Safety of Halothane Anesthesia," 1988.
[3] European Medicines Agency. "Regulatory Status of Halothane," 2010.
[4] MarketsandMarkets. "Inhalational Anesthetics Market," 2022.

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.