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Last Updated: December 12, 2025

ACETAMINOPHEN; BUTALBITAL - Generic Drug Details


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What are the generic drug sources for acetaminophen; butalbital and what is the scope of freedom to operate?

Acetaminophen; butalbital is the generic ingredient in twenty branded drugs marketed by Forest Pharms, Mallinckrodt, Dr Reddys Labs Sa, Granules, Valeant, Dunhall, Pharmobedient, Alvogen, Anda Repository, Halsey, Lgm Pharma, Ne Rx Pharma, Quagen, Senores Pharms, Watson Labs, Mikart, Mayrand, Shire, Aurolife Pharma Llc, Gilbert Labs, Graham Dm, Hikma, Key Therap, Lannett Co Inc, Novast Labs, Nuvo Pharms Inc, Taro, Us Chem, Genus, Abhai Llc, Able, Actavis Labs Ut Inc, Hikma Pharms, Mirror Pharms Llc, Nesher Pharms, Specgx Llc, Strides Pharma, Strides Pharma Intl, Sun Pharm Industries, Vintage Pharms, and Hikma Intl Pharms, and is included in eighty-two NDAs. Additional information is available in the individual branded drug profile pages.

Nine suppliers are listed for this compound.

Summary for ACETAMINOPHEN; BUTALBITAL
Recent Clinical Trials for ACETAMINOPHEN; BUTALBITAL

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

SponsorPhase
Federal University of São PauloPhase 4
Fundação de Amparo à Pesquisa do Estado de São PauloPhase 4
GlaxoSmithKlinePhase 3

See all ACETAMINOPHEN; BUTALBITAL clinical trials

Pharmacology for ACETAMINOPHEN; BUTALBITAL
Drug ClassBarbiturate

US Patents and Regulatory Information for ACETAMINOPHEN; BUTALBITAL

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Mallinckrodt FEMCET acetaminophen; butalbital; caffeine CAPSULE;ORAL 089102-001 Jun 19, 1985 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Mallinckrodt TENCON acetaminophen; butalbital CAPSULE;ORAL 089405-001 May 15, 1990 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Mikart BUTAPAP acetaminophen; butalbital TABLET;ORAL 089988-001 Oct 26, 1992 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Quagen BUTALBITAL, ACETAMINOPHEN AND CAFFEINE acetaminophen; butalbital; caffeine CAPSULE;ORAL 216376-001 Mar 12, 2024 AA RX No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Watson Labs BUTALBITAL, ACETAMINOPHEN AND CAFFEINE acetaminophen; butalbital; caffeine TABLET;ORAL 040267-001 Jul 30, 1998 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Abhai Llc BUTALBITAL, ACETAMINOPHEN AND CAFFEINE acetaminophen; butalbital; caffeine TABLET;ORAL 211106-001 Sep 26, 2018 AA RX No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Granules BUTALBITAL, ACETAMINOPHEN AND CAFFEINE acetaminophen; butalbital; caffeine CAPSULE;ORAL 213321-001 Apr 8, 2020 AA RX 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 Acetaminophen and Butalbital

Last updated: July 30, 2025

Introduction

Acetaminophen (paracetamol) and butalbital are widely used pharmaceuticals with distinct roles within the therapeutic landscape. Acetaminophen is a ubiquitous analgesic and antipyretic, while butalbital, a barbiturate, is primarily used in combination formulations for tension headaches and migraines. Analyzing their market dynamics and financial trajectories reveals critical insights into their current positioning, growth prospects, and regulatory challenges within a competitive healthcare environment.

Market Overview

Acetaminophen: A Global Staple

Acetaminophen enjoys broad usage across over 100 countries, owing to its efficacy, affordability, and safety profile when used appropriately (1). It ranks among the world's most commonly sold over-the-counter (OTC) medications, with significant consumption in North America, Europe, and Asia-Pacific. The drug’s market is driven by a rising prevalence of pain and fever-related conditions, coupled with consumer preference for OTC analgesics.

The global acetaminophen market was valued at approximately USD 3.2 billion in 2021 and projected to grow at a compound annual growth rate (CAGR) of around 4.2% through 2027 (2). Latest market reports attribute growth to expanding healthcare infrastructure in emerging markets, increased self-medication trends, and the sustained demand for non-opioid pain relievers amidst the opioid crisis.

Butalbital: A Niche but Critical Component

In contrast, butalbital's market is more specialized. Its primary application is in combination formulations for tension headaches and migraines, often paired with acetaminophen, aspirin, or caffeine. Despite its longstanding clinical utility, butalbital's market has contracted due to regulatory concerns and the rise of alternative therapies.

The global butalbital market remains modest, estimated at around USD 250 million in 2021, with a projected CAGR of below 2% over the next five years (3). The limited scope reflects regulatory restrictions in many jurisdictions, such as the FDA's recent reclassification of barbiturates as controlled substances, and heightened awareness of the risks of dependency and overdose.

Market Dynamics

Regulatory Environment

The regulatory landscape profoundly influences market trajectories:

  • Acetaminophen: While generally regarded as safe, regulatory agencies like the FDA and EMA have tightened limits on maximum dosages to mitigate hepatotoxicity risks. This has led to reformulation of existing products and increased scrutiny on combination drugs containing acetaminophen (4).

  • Butalbital: Stricter regulations, notably Schedule III or IV status in the US and equivalent classifications elsewhere, have constrained its accessibility. The DEA's scheduling of butalbital-containing products as controlled substances in 2018 has curtailed prescribing volumes and slowed market growth (5).

Innovation and Formulation Trends

Innovation in formulation technology is a key driver for acetaminophen. Immediate-release, extended-release, and combination products with other analgesics or adjuvants have expanded its application scope. Notably, formulations minimizing hepatotoxicity risk or enabling targeted delivery hold promise for sustaining growth.

For butalbital, innovation has been limited, with focus shifting toward safer alternatives like triptans or CGRP antagonists for migraine treatment. Consequently, market differentiation has narrowed, and demand has diminished.

Healthcare Trends

The global trend toward reducing opioid use bolsters OTC non-opioid analgesics like acetaminophen. Conversely, the push for safer, non-addictive headache management alternatives adversely impacts butalbital's positioning. Physician prescribing behaviors have progressively favored newer, FDA-approved drugs with better safety profiles, even as some patients with refractory migraines continue to rely on butalbital formulations under strict guidelines.

Competitive Landscape

Acetaminophen's market features prominent players such as Johnson & Johnson, GlaxoSmithKline, and Procter & Gamble, with significant OTC distribution channels. Market competition emphasizes manufacturing efficiency, formulation diversification, and supply chain resilience.

In contrast, butalbital's market is characterized by fewer suppliers, mainly generic manufacturers, due to regulatory restrictions. Market entry barriers are high, and proprietary formulations are limited. Moreover, the market’s clinical use is predominantly driven by niche neurology specialists.

Financial Trajectory

Revenue Projections

  • Acetaminophen: Sustained demand, robust OTC sales, and product innovations project continued revenue growth, with global revenues reaching approximately USD 4.2 billion by 2027 (2). The emergence of combination analgesics and formulations tailored for specific populations (e.g., pediatric, elderly) could further bolster sales.

  • Butalbital: Market value is expected to decline marginally or stabilize at low levels, primarily supported by existing prescriptions. The revenue is projected to be around USD 200–250 million in 2027, with minimal growth due to regulatory headwinds and substitution by newer agents (3).

Pricing Trends

  • Acetaminophen: Pricing remains competitive, with OTC products priced between USD 2–10 per package. Formulation complexity influences price premiums. Regulatory restrictions on maximum dosages have constrained premium pricing opportunities.

  • Butalbital: Pricing is relatively stable but low in light of limited demand and generic prevalence. Controlled substance status often entails additional handling costs, marginally impacting net revenues.

R&D and Patent Considerations

While acetaminophen is off-patent, ongoing research aims at safer formulations and combination strategies, which may offer incremental revenue streams. Novel delivery methods, such as transdermal patches or nanocarrier systems, are under investigation.

For butalbital, innovation investments are minimal. Patent protections are largely expired, which constrains pricing power and sustains generic competition.

Market Challenges and Opportunities

Challenges

  • Regulatory Scrutiny: Ongoing safety concerns, especially for acetaminophen hepatotoxicity, demand continual formulation revisions and could limit permissible dosages or formulations.

  • Substitution and Alternatives: The emergence of NSAIDs, opioids, triptans, and CGRP inhibitors challenge the market share of traditional analgesics and headache remedies.

  • Public Awareness: Heightened awareness of drug dependency risks reduces the acceptability of barbiturate-containing medications like butalbital.

Opportunities

  • Innovative Formulations: Development of reduced-toxicity acetaminophen variants, targeted delivery systems, and combination products could stimulate growth.

  • Emerging Markets: Expanding healthcare infrastructure and rising disease prevalence offer growth avenues, especially in Asia-Pacific and Latin America.

  • Regulatory Navigation: Proper compliance and safety profiling permit market access and brand differentiation.

Conclusion

The pharmaceutical market landscape for acetaminophen and butalbital underscores contrasting trajectories dictated by safety profiles, regulatory frameworks, and therapeutic alternatives. Acetaminophen's extensive usage and ongoing product innovation forecast sustained growth, whereas butalbital faces structural decline due to safety and regulatory challenges. Companies that invest in formulation innovation, pursue strategic regulatory engagement, and expand into underserved markets will better navigate these dynamics.


Key Takeaways

  • Market Expansion: Acetaminophen remains a cornerstone OTC analgesic with strong growth prospects, especially with formulation innovations and emerging market penetration.

  • Regulatory Adaptation: Both drugs require continuous regulatory compliance; acetaminophen for dosage safety, and butalbital due to addiction concerns, impacting market access and profitability.

  • Innovation Focus: Advancing delivery technologies and safer formulations will be critical for future growth in acetaminophen’s segment.

  • Market Risks: Safety regulations, the advent of alternative therapies, and dependency issues pose ongoing threats, particularly for butalbital.

  • Strategic Positioning: Companies should prioritize compliance, diversification, and market expansion to capitalize on the evolving pharmaceutical landscape.


FAQs

1. How does regulatory scrutiny impact the market for acetaminophen and butalbital?
Regulatory agencies prioritize safety, especially concerning hepatotoxicity for acetaminophen and dependency risks for butalbital. Stricter regulations lead to dosage limits, reformulation requirements, and scheduling changes, which can reduce market size and profitability.

2. What growth opportunities exist for acetaminophen manufacturers?
Innovation in formulation, expansion into emerging markets, and development of combination products with reduced toxicity or targeted delivery systems offer growth pathways.

3. Why has butalbital's market declined over recent years?
Regulatory restrictions, safety concerns regarding dependency and overdose, and the availability of safer, efficacious alternatives have diminished demand for butalbital.

4. How do safety concerns influence future patenting and innovation strategies?
Safety concerns necessitate reformulation and new delivery methods, which may create patentable innovations and extend lifecycle management for existing products.

5. What is the impact of alternative therapies on these drugs' markets?
Emerging therapies such as triptans and CGRP inhibitors are replacing butalbital for migraines, while NSAIDs and opioids impact acetaminophen's share, compelling manufacturers to innovate and differentiate.


References

  1. [World Health Organization. "Paracetamol (acetaminophen) medicines." 2021.]
  2. [MarketWatch. "Acetaminophen Market Size & Trends." 2022.]
  3. [Grand View Research. "Butalbital Market Insights." 2022.]
  4. [FDA. "Acetaminophen Hepatotoxicity and Safety Monitoring." 2021.]
  5. [DEA Diversion Control Division. "Controlled Substances Scheduling." 2018.]

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