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Last Updated: December 11, 2025

ZOLPIDEM TARTRATE Drug Patent Profile


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

Zolpidem Tartrate is a drug marketed by Almatica, Actavis Elizabeth, Actavis Labs Fl Inc, Apotex, Breckenridge, Lupin Ltd, Ph Health, Sandoz, Sun Pharm, Synthon Pharms, Acme Labs, Anda Repository, Apotex Inc, Aurobindo Pharma, Chartwell Molecular, Hikma, Invagen Pharms, Mylan Pharms Inc, Rising, Strides Pharma, Strides Pharma Intl, Sun Pharm Inds Inc, Sun Pharm Inds Ltd, Sun Pharm Industries, Teva, Torrent Pharms, Watson Labs, Wockhardt, Yung Shin Pharm, Dr Reddys, Novel Labs Inc, and Pharmobedient. and is included in thirty-six NDAs.

The generic ingredient in ZOLPIDEM TARTRATE is zolpidem tartrate. There are thirty-three drug master file entries for this compound. Forty-seven suppliers are listed for this compound. Additional details are available on the zolpidem tartrate profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Zolpidem Tartrate

A generic version of ZOLPIDEM TARTRATE was approved as zolpidem tartrate by ACME LABS on April 23rd, 2007.

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  • What is the 5 year forecast for ZOLPIDEM TARTRATE?
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Drug patent expirations by year for ZOLPIDEM TARTRATE
Drug Prices for ZOLPIDEM TARTRATE

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Drug Sales Revenue Trends for ZOLPIDEM TARTRATE

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Recent Clinical Trials for ZOLPIDEM TARTRATE

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SponsorPhase
The First Affiliated Hospital with Nanjing Medical UniversityNA
National Institute on Aging (NIA)Phase 4
University of PennsylvaniaPhase 4

See all ZOLPIDEM TARTRATE clinical trials

Anatomical Therapeutic Chemical (ATC) Classes for ZOLPIDEM TARTRATE
Paragraph IV (Patent) Challenges for ZOLPIDEM TARTRATE
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
INTERMEZZO Sublingual Tablets zolpidem tartrate 1.75 mg and 3.5 mg 022328 1 2012-04-10
EDLUAR Sublingual Tablets zolpidem tartrate 5 mg and 10 mg 021997 1 2010-04-29
AMBIEN CR Extended-release Tablets zolpidem tartrate 6.25 mg 021774 1 2006-02-24
AMBIEN CR Extended-release Tablets zolpidem tartrate 12.5 mg 021774 1 2006-01-19

US Patents and Regulatory Information for ZOLPIDEM TARTRATE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Strides Pharma ZOLPIDEM TARTRATE zolpidem tartrate TABLET;ORAL 076062-002 Apr 23, 2007 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Invagen Pharms ZOLPIDEM TARTRATE zolpidem tartrate TABLET;ORAL 078184-001 Sep 7, 2007 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Sun Pharm Industries ZOLPIDEM TARTRATE zolpidem tartrate TABLET;ORAL 077288-002 Apr 23, 2007 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Yung Shin Pharm ZOLPIDEM TARTRATE zolpidem tartrate TABLET;ORAL 077990-001 Apr 23, 2007 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
Sun Pharm Inds Inc ZOLPIDEM TARTRATE zolpidem tartrate TABLET;ORAL 077359-002 Apr 23, 2007 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 Zolpidem Tartrate

Last updated: July 27, 2025

Introduction
Zolpidem tartrate, a non-benzodiazepine hypnotic agent primarily prescribed for short-term management of insomnia, remains a significant segment within the global pharmaceutical landscape. Its market trajectory is shaped by evolving prescription guidelines, regulatory considerations, generic entry, and emerging alternatives. Analyzing these factors provides a comprehensive view of its current standings and forecasted financial performance.

Market Overview
Zolpidem tartrate, marketed under brands like Ambien and Stilnox, was first launched in the early 1990s and swiftly gained prominence as a preferred sleep aid. Its mechanism involves selective modulation of GABA-A receptors, resulting in sedative effects with a comparatively favorable safety profile versus benzodiazepines. The global market for zolpidem was valued at approximately US$1.2 billion in 2022, with North America dominating due to high prescription rates and favorable regulatory environments.

Market Drivers

  1. Prevalence of Sleep Disorders
    The rising incidence of insomnia globally, exacerbated by lifestyle factors, aging demographics, and increased mental health awareness, sustains demand for hypnotic agents. According to the World Sleep Society, over 30% of adults report sleep difficulties, underpinning steady prescription trends.

  2. Pharmaceutical Innovation and Expanded Indications
    While primarily indicated for insomnia, ongoing clinical trials exploring zolpidem’s off-label uses or combination therapies could open new revenue streams. Nonetheless, current focus remains on its core use, with minimal diversification.

  3. Regulatory Framework and Prescribing Guidelines
    Stringent FDA guidelines in the U.S. and similar standards across Europe have prioritized safety, emphasizing short-term use to mitigate dependence risk. Regulatory shifts toward tighter controls may modulate market size but also elevate generic competition.

  4. Growing Preference for Generics
    Post-patent expiration, generic versions have entered the market, significantly reducing wholesale prices and pressuring branded formulations. As of 2022, generics accounted for over 80% of zolpidem prescriptions in the U.S., driving volumes but compressing profit margins for original manufacturers.

Market Challenges

  1. Safety Concerns and Regulatory Actions
    Reports of complex sleep-related behaviors (e.g., sleepwalking, amnesia) have led to FDA black box warnings. These safety signals have prompted prescriber caution, potentially affecting utilization volumes.

  2. Alternative Therapeutics
    Emergence of newer agents, such as suvorexant (a dual orexin receptor antagonist) and melatonin receptor agonists like ramelteon, offer alternative treatment options with potentially lower safety concerns. Their growing market share could cannibalize zolpidem’s demand.

  3. Dependence and Abuse Potential
    Regulatory agencies classify zolpidem as a controlled substance (Schedule IV in the U.S.), imposing strict prescribing limits. This classification curtails misuse but limits long-term usage, emphasizing short-term prescribing.

  4. Market Saturation and Price Erosion
    Intensified competition from generic suppliers results in eroded revenue streams for branded products. Manufacturers are compelled to focus on cost efficiencies and marketing strategies to sustain profitability.

Financial Trajectory Forecast (2023-2030)

  • Short-term Outlook (2023-2025):
    Following patent expiration, generics will dominate. Revenue for original patent holders is expected to decline sharply, with an estimated compound annual decline rate (CAGR) of approximately 15%. However, volume-based sales may stabilize due to persistent unmet demand for effective sleep aids.

  • Medium-term Outlook (2025-2027):
    Market entrants may introduce modified formulations or extended-release versions, fostering incremental growth. Regulatory pressures may lead to downward price adjustments, but innovation could insulate some revenue streams.

  • Long-term Outlook (2027-2030):
    Growth prospects hinge on the pipeline development of newer therapeutics, shifting prescriber preferences, and regulatory landscapes. The overall market for zolpidem is projected to plateau or decline modestly, with a possible CAGR of -2% to 0%. However, niche markets such as elderly care facilities could sustain persistent demand.

Strategic Opportunities

  • Formulation Innovation: Developing formulations with improved safety profiles or reduced dependence potential can differentiate products.
  • Geographic Expansion: Emerging markets with rising sleep disorder prevalence present growth avenues, particularly where regulatory barriers are less stringent.
  • Combination Therapies: Partnering with mental health or sleep disorder specialists to explore combination treatments could unlock new revenue streams.
  • Regulatory Engagement: Active dialogue with regulators to refine safety monitoring may foster market confidence and extended lifecycle management.

Conclusion
Zolpidem tartrate’s future hinges on balancing its entrenched role in sleep disorder management against safety concerns and evolving therapeutic options. While patent expiries and generics have compressed margins, strategic innovation and market adaptation can preserve profitability. Understanding these dynamics is essential for stakeholders aiming to navigate the complex pharmaceutical environment surrounding this longstanding hypnotic.


Key Takeaways

  • Market Decline Post-Patent: Patent expiration led to increased generic competition, drastically reducing revenue margins for branded zolpidem formulations.
  • Demand Persistence: Despite safety concerns, the high prevalence of insomnia sustains consistent demand, especially in developed markets.
  • Regulatory Impact: Stringent safety warnings and classification as a controlled substance influence prescribing behaviors and market size.
  • Emerging Therapeutics: Competitors like suvorexant and ramelteon are capturing market share, posing challenges to zolpidem’s dominance.
  • Strategic Innovation: Developing safer formulations and expanding into emerging markets can mitigate revenue loss and diversify growth vectors.

Frequently Asked Questions (FAQs)

1. How has patent expiration affected zolpidem tartrate’s market share?
Patent expiration facilitated the entry of generic manufacturers, significantly reducing prices and shifting most prescriptions from branded to generic versions. This transition led to an approximate 80% market share being held by generics in the U.S. as of 2022, thereby decreasing revenues for original innovators.

2. What safety concerns have influenced zolpidem’s regulatory status and prescribing patterns?
Reports of complex sleep-related behaviors and dependence risks prompted the FDA to issue black box warnings, making physicians more cautious in prescribing. These safety issues, coupled with regulatory restrictions like Schedule IV classification, have limited long-term use and market growth.

3. Are there emerging alternatives that threaten zolpidem’s market dominance?
Yes, drugs such as suvorexant and ramelteon offer different mechanisms with potentially improved safety profiles. Their increasing acceptance, supported by clinical trials and regulatory endorsement, is gradually reducing zolpidem’s market share.

4. What is the projected financial trajectory of zolpidem tartrate over the next decade?
The market is expected to decline modestly, with a CAGR of around -2% to 0%, driven by generic competition, safety concerns, and competing agents. Strategic formulation improvements and geographic expansion are potential mitigators of this decline.

5. How can pharmaceutical companies sustain profitability with zolpidem in a competitive landscape?
Innovations such as extended-release formulations, combination therapies, and targeting niche markets can help sustain revenue. Additionally, engaging proactively with regulators to improve safety profiles and pursuing emerging markets can provide growth pathways.


Sources:
[1] World Sleep Society. (2022). Sleep Statistics and Trends.
[2] U.S. Food & Drug Administration. (2020). Zolpidem Safety Labeling Changes.
[3] IMS Health. (2022). Pharmaceutical Market Report.
[4] MarketWatch. (2023). Sleep Disorder Drugs Market Analysis.
[5] EvaluatePharma. (2023). 2022 World Market Forecast for Sedative-Hypnotics.

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