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Last Updated: December 11, 2025

CHLORDIAZEPOXIDE HYDROCHLORIDE Drug Patent Profile


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Which patents cover Chlordiazepoxide Hydrochloride, and what generic alternatives are available?

Chlordiazepoxide Hydrochloride is a drug marketed by Ascot, Barr, Chartwell Rx, Ferrante, Halsey, Impax Labs, Ivax Sub Teva Pharms, Lederle, Mast Mm, Mylan, Parke Davis, Pioneer Pharms, Purepac Pharm, Roxane, Superpharm, Teva, Upsher Smith Labs, Usl Pharma, Vangard, Watson Labs, West Ward, Alembic, Alkem Labs Ltd, Amneal, Aurobindo Pharma Ltd, Corepharma, Dr Reddys, Micro Labs, Misemer, Nuvo Pharms Inc, Teva Pharms Usa, Torrent, and Winder Labs Llc. and is included in seventy-seven NDAs.

The generic ingredient in CHLORDIAZEPOXIDE HYDROCHLORIDE is chlordiazepoxide hydrochloride; clidinium bromide. There are nine drug master file entries for this compound. Fourteen suppliers are listed for this compound. Additional details are available on the chlordiazepoxide hydrochloride; clidinium bromide profile page.

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Summary for CHLORDIAZEPOXIDE HYDROCHLORIDE
Drug patent expirations by year for CHLORDIAZEPOXIDE HYDROCHLORIDE
Recent Clinical Trials for CHLORDIAZEPOXIDE HYDROCHLORIDE

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

SponsorPhase
Mayo ClinicPhase 4
Oregon Health and Science UniversityPhase 2
Taipei City HospitalPhase 2/Phase 3

See all CHLORDIAZEPOXIDE HYDROCHLORIDE clinical trials

Pharmacology for CHLORDIAZEPOXIDE HYDROCHLORIDE
Drug ClassBenzodiazepine
Anatomical Therapeutic Chemical (ATC) Classes for CHLORDIAZEPOXIDE HYDROCHLORIDE

US Patents and Regulatory Information for CHLORDIAZEPOXIDE HYDROCHLORIDE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Micro Labs CHLORDIAZEPOXIDE HYDROCHLORIDE AND CLIDINIUM BROMIDE chlordiazepoxide hydrochloride; clidinium bromide CAPSULE;ORAL 215835-001 Jul 19, 2022 AB RX No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Roxane CHLORDIAZEPOXIDE HYDROCHLORIDE chlordiazepoxide hydrochloride CAPSULE;ORAL 084700-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Parke Davis CHLORDIAZEPOXIDE HYDROCHLORIDE chlordiazepoxide hydrochloride CAPSULE;ORAL 085163-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Teva CHLORDIAZEPOXIDE HYDROCHLORIDE chlordiazepoxide hydrochloride CAPSULE;ORAL 088707-001 Jan 18, 1985 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Watson Labs CHLORDIAZEPOXIDE HYDROCHLORIDE chlordiazepoxide hydrochloride CAPSULE;ORAL 086294-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Superpharm CHLORDIAZEPOXIDE HYDROCHLORIDE chlordiazepoxide hydrochloride CAPSULE;ORAL 088988-001 Apr 25, 1985 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

Last updated: July 27, 2025

rket Dynamics and Financial Trajectory for Chlordiazepoxide Hydrochloride

Introduction

Chlordiazepoxide hydrochloride, a benzodiazepine derivatives, was first introduced in the 1960s and has since played a pivotal role in treating anxiety, alcohol withdrawal, and related conditions. Despite its longstanding presence in the therapeutic landscape, the drug’s market positioning has undergone significant transformation driven by evolving regulatory landscapes, emerging competition, and shifts in treatment paradigms. This article examines the current market dynamics and forecasts the financial trajectory of chlordiazepoxide hydrochloride within the global pharmaceutical industry.

Historical Context and Product Profile

Chlordiazepoxide was pioneered by Hoffmann-La Roche in 1957 and gained FDA approval in 1960 (1). It became one of the first benzodiazepines, rapidly replacing barbiturates for anxiety and insomnia due to its improved safety profile. Over time, its indications expanded to include alcohol withdrawal management, preoperative sedation, and muscle relaxation.

The drug’s patent expired decades ago, transitioning it into a generic drug status, which significantly influenced its market competitiveness. As a result, chlordiazepoxide hydrochloride became widely available in multiple formulations, such as capsules and injections, through various generic manufacturers worldwide.

Current Market Landscape

Global Market Overview

The global benzodiazepines market—including drugs like diazepam, lorazepam, and chlordiazepoxide—has seen steady growth driven by increasing prevalence of anxiety disorders, alcohol dependency, and procedural sedation needs (2). However, chlordiazepoxide's market share has declined relative to newer benzodiazepines and alternative treatments, such as SSRIs and non-benzodiazepine anxiolytics.

Therapeutic Use and Prescription Trends

The primary use of chlordiazepoxide remains in alcohol withdrawal management, especially in hospital settings. Its role in anxiety treatment, once dominant, has diminished due to safety concerns, dependence potential, and availability of newer agents with improved pharmacokinetics. Hospitals and clinics increasingly favor drugs with rapid onset, short half-lives, and better safety margins.

In the U.S., the rise in regulatory oversight and the opioid epidemic have prompted cautious benzodiazepine prescribing, affecting overall demand. Similarly, in Europe and Asia, prescribing patterns are shifting toward newer, safer alternatives, reducing chlordiazepoxide’s utilization.

Competitive and Regulatory Factors

The market is characterized by intense generic competition, with numerous pharmaceutical companies producing chlordiazepoxide hydrochloride. This proliferation has compressed profit margins, making the drug a low-value segment in terms of revenue.

Regulatory agencies have issued warnings about benzodiazepine misuse, dependence, and adverse effects, leading to more stringent controls on prescribing and distribution. The Drug Enforcement Administration (DEA) classifies benzodiazepines as Schedule IV substances, further constraining market expansion potential (3).

Market Challenges and Opportunities

Challenges

  • Declining Prescriptions: Due to safety concerns, many clinicians prefer alternative therapies, such as SSRIs or non-benzodiazepine sedatives.
  • Regulatory Constraints: Increased restrictions impact supply chain and access, especially in countries with strict controlled substance regulations.
  • Generic Market Saturation: Intense price competition diminishes profitability, reducing incentives for innovation or new formulation development.
  • Safety Profiles: Growing awareness of dependence and withdrawal issues limits long-term use, decreasing residual demand.

Opportunities

  • Niche Applications: Continued use in alcohol withdrawal management and preoperative sedation sustains niche markets.
  • Formulation Innovations: Developing extended-release formulations or combination therapies could enhance utility and marketability.
  • Regional Growth Markets: Emerging economies with loosening drug regulations may present growth prospects, albeit limited by existing safety concerns.
  • Research and Combination Products: Potential for repositioning or combining chlordiazepoxide with other agents for specific indications could stimulate demand.

Financial Trajectory Analysis

Revenue Projections

Given its mature status and generic market saturation, chlordiazepoxide hydrochloride’s revenue has experienced a consistent decline over the past decade. Estimated global sales have fallen from approximately USD 100 million in the early 2010s to less than USD 30 million in 2022 (4).

In the coming five years, projections suggest a continued decline at a CAGR of approximately 3-5%, driven by negative prescription trends and regulatory constraints. Certain niche markets, like alcohol withdrawal, may sustain minimal revenues; however, widespread prescribing is unlikely to recover significantly.

Profitability Outlook

Generic manufacturing margins are thin due to fierce price competition. Furthermore, increased regulatory oversight and safety warnings escalate compliance costs. As such, the product’s profit margins are expected to decrease further, with many manufacturers likely exiting or reducing investment in production.

Market Exit or Sustained Niche

Given the current landscape, market analysts predict that several companies may phase out manufacturing over the next 3-4 years or repurpose existing formulations for specialized use. Remaining sales are expected to be heavily discounted, emphasizing the drug’s status as a niche, rather than core, product for most pharma firms.

Future Outlook and Strategic Considerations

Pharmacovigilance and Regulatory Advocacy

Ongoing safety concerns necessitate robust pharmacovigilance. Companies with existing market presence should focus on compliance and risk mitigation to prolong product lifecycle.

Pipeline and Innovation

Investors and manufacturers looking to extend product viability should explore reformulation, dosage optimization, or combination therapies that could meet changing clinical requirements.

Potential Market Exit

Participants should evaluate the cost-benefit ratio of continued investment vs. strategic exit, especially if new regulatory constraints or safety issues intensify.

Key Takeaways

  • Market Decline: Chlordiazepoxide hydrochloride faces a steadily shrinking market due to safety concerns, regulatory tightening, and competition from newer therapies.
  • Niche Applications: Its primary use persists in alcohol withdrawal, although this segment is also declining as safer alternatives become available.
  • Profitability Challenges: Price competition in the generic market, coupled with regulatory costs, constrains margins, making ongoing manufacturing less attractive.
  • Strategic Outlook: Companies should consider portfolio reassessment, focusing on niche markets or reformulation, while preparing for possible market exit.
  • Regulatory and Safety Focus: Maintaining compliance and addressing safety concerns are critical to prolonging the product's lifecycle, if feasible.

FAQs

1. Is chlordiazepoxide hydrochloride still widely prescribed?
No, its use has declined significantly in favor of newer benzodiazepines and non-benzodiazepine agents, with prescriptions mainly limited to specific niches such as alcohol withdrawal management.

2. What are the main factors influencing its market decline?
Safety concerns, dependence risks, regulatory restrictions, and competition from more advanced therapies are key drivers of its declining market position.

3. Are there any ongoing developments or reformulations?
Currently, no substantial reformulations or new indications are in advanced clinical development, although some companies may explore combination or extended-release formulations.

4. What regions show potential for continued use?
Hospitals and clinics in regions where regulatory restrictions are less stringent may continue to utilize chlordiazepoxide for niche indications, albeit at reduced volumes.

5. What strategic moves should stakeholders consider?
Manufacturers should evaluate cost-effective production, focus on niche markets, consider reformulation strategies, or plan for phased market withdrawal based on profitability analyses.

References

  1. FDA Press Release: "Approval of Chlordiazepoxide - First Benzodiazepine," 1960.
  2. Transparency Market Research: "Benzodiazepines Market," 2022.
  3. DEA Schedule Classification: U.S. Drug Scheduling Information, 2023.
  4. IMS Health Data (IQVIA): Global sales report, 2022.

In summary, chlordiazepoxide hydrochloride exemplifies a mature, declining pharmaceutical product hampered by safety issues, regulatory constraints, and stiff generic competition. While niche uses may persist temporarily, the overall financial prospects are limited, urging strategic caution among stakeholders.

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