Esleep

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Esleep

Method of action: Hypnotic

Treatment option:

Medically reviewed

Marina Burgos

Last updated on 10/01/2026

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Esleep

Property Description
Active ingredient Eszopiclone
Form Oral tablet (film-coated)
Pharmacological class Sedative-Hypnotic (Z-drug)
General purpose Aid for sleep initiation and maintenance
Origin Synthetic compound

What Type of Medicine is Esleep (Eszopiclone)?

Eszopiclone is the active pharmaceutical ingredient (INN: Eszopiclone) in the medicine Esleep, and it is chemically classified as a nonbenzodiazepine sedative-hypnotic. This drug class indicates the medicine's primary function is to modulate the central nervous system (CNS) to facilitate sleep. It is categorized as a cyclopyrrolone derivative within the Z-drug group, which supports its use as an aid for sleep disorders. Eszopiclone possesses high affinity and specificity for the GABA-A receptor complex. This means the substance belongs to a class of compounds specifically designed to assist with rest. Eszopiclone is a prescription-only medicine, distinguishing it from common over-the-counter sleep aids due to its targeted mechanism of action.

Composition and The Nonbenzodiazepine Structure

Esleep is a single-ingredient product delivered as an oral tablet. The active substance is a synthetic compound that belongs to the cyclopyrrolone derivative group. This formulation is distinctive because Eszopiclone is isolated as the pure S-enantiomer (stereoisomer) of the older racemic mixture, zopiclone. The S-enantiomer provides the primary therapeutic activity. As a Z-drug, its specific chemical structure is unrelated to the older benzodiazepine class of sedatives, a fact that defines its unique pharmacological profile. Eszopiclone is identified as an agent that promotes sleep maintenance and onset, supporting both phases of the natural sleep cycle.

General Purpose: How Eszopiclone Supports Sleep

The general purpose of Eszopiclone is to serve as an effective sleep aid by leveraging the brain's natural inhibitory systems. The drug's mechanism involves acting as a positive allosteric modulator on the GABA-A receptor complex. This action boosts the natural calming effect of the neurotransmitter GABA, thereby promoting a state of brain quietude which helps initiate and maintain a restful sleep period. A typical use scenario involves individuals who require assistance in achieving sleep onset, such as during periods of temporary sleep schedule disruption.

What side effects are possible with Esleep?

Possible Side Effects and Safety Information

The safety profile of Esleep (Eszopiclone) is defined by officially documented adverse reactions categorized by frequency and the physiological systems affected, as outlined in government regulatory labeling.


Adverse Reaction Classification

Side effects are officially classified based on their incidence in clinical studies. Common reactions reported in regulatory documents include unpleasant taste (dysgeusia), headache, somnolence (daytime sleepiness), dizziness, dry mouth, and nausea. Less common effects may include psychiatric symptoms such as confusion, anxiety, and hallucinations. Reactions are grouped by System-Organ-Class, primarily affecting the Nervous System (e.g., somnolence, dizziness), Gastrointestinal System (e.g., dry mouth, dysgeusia), and Psychiatric Disorders.


Serious Safety Concerns and Restrictions

Official labeling highlights the risk of Serious Adverse Reactions, which include Complex Sleep Behaviors such as sleep-walking and sleep-driving, activities performed while not fully awake that can result in serious harm. Rare but life-threatening severe hypersensitivity reactions, such as angioedema (swelling of the face, tongue, and throat) and anaphylaxis, have also been documented in post-marketing reports. The medication is contraindicated in patients who have experienced a complex sleep behavior event after previous use.


Population and Exposure-Related Notes

Safety statements include specific considerations for patient populations. For older adults, there is a noted increased risk of dizziness and impaired coordination. The safety and effectiveness have not been established in the pediatric population. The risk of impaired alertness and motor coordination persists the day following administration. Upon abrupt cessation after prolonged use, patients may experience withdrawal symptoms or rebound insomnia, as noted in official regulatory texts.

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory profile for Esleep (Eszopiclone) overdose focuses on the risks associated with the drug's potent Central Nervous System (CNS) depression effects. An overdose typically results in an exaggeration of pharmacological effects, presenting as profound somnolence and severe mental status changes.


Documented Severity and Actions

Classification Regulatory Statement
Severity Fatal outcomes are specifically documented when Eszopiclone is taken with alcohol or other CNS depressant agents.
Action Mandate Regulators require that individuals seek immediate medical attention upon suspicion of overdose.

Management and Emergency Response

The official guidance mandates contacting Emergency Services or a Poison Control Center immediately. Management is centered on providing symptomatic and supportive treatment, including close monitoring of vital signs and potential procedures like gastric lavage or activated charcoal for recent ingestion.

The GABAA receptor antagonist Flumazenil is noted in regulatory documentation as a possible intervention. The documented risk of severity, particularly when combined with other depressants, defines the required urgent, immediate response.

Therapeutic Uses of Esleep

What Esleep Treats: Main Uses and Benefits

This medication is generally used in conditions involving long-term sleep disruption, and is considered relevant for patients whose functional stability becomes affected. The medication is commonly used across conditions presenting with acute episodes, and is relevant for both primary insomnia and sleep disturbances that frequently coexist with other chronic medical or psychiatric conditions.

The primary therapeutic focus is applied in addressing the symptomatic clusters of insomnia: difficulty falling asleep, difficulty staying asleep, and the resulting feeling of non-restorative sleep. By mitigating these issues, the medication helps reduce the symptom load and supports the crucial benefit of consolidated sleep.

Supportive Benefit Focus

The ultimate therapeutic aim is relevant for easing symptoms that interfere with daily functioning for patients whose routine activities are compromised by poor sleep. The symptomatic relief contributes to maintaining a sense of stability when symptoms are more noticeable, supporting the patient's capacity for routine activities. The medication is applied in addressing conditions characterized by periods of heightened symptoms in both adult and older adult patient groups.

Quick Fact: Symptom Cluster Management
Helps address symptom clusters that may become intense or disruptive, assisting with improved alertness and day-to-day comfort.

Eligibility and Restrictions for Use

Who Can and Cannot Use Esleep? (Eszopiclone)

The eligibility for Esleep is strictly defined by official regulatory criteria, primarily restricting use based on age, physiological status, and specific medical history. Esleep is generally approved for use in adults and older adults with insomnia; however, use in older adults is restricted to a lower maximum dose (2 mg) due to heightened sensitivity and increased systemic exposure.

Populations Officially Contraindicated

Use of Esleep is absolutely contraindicated in patients with a known hypersensitivity to Eszopiclone or zopiclone, or any of the product’s ingredients. It is also forbidden for patients who have experienced complex sleep behaviors (such as sleepwalking or sleep-driving) after taking Eszopiclone or another hypnotic agent. European regulators additionally list contraindications for patients with Severe Hepatic Insufficiency, Myasthenia Gravis, or Severe Respiratory Insufficiency.

Age and Conditional Restrictions

Safety and effectiveness have not been established in children and adolescents under 18 years; thus, use in the pediatric population is generally not recommended or contraindicated. Use in patients with Severe Hepatic Impairment requires a maximum dose restriction of 2 mg. During pregnancy and lactation, caution must be exercised, and the drug should only be used if the potential benefit outweighs the potential risk to the fetus or infant, as determined by a healthcare provider.

What should I know about interactions with other medicines?

The interaction profile for Esleep (Eszopiclone) is documented by regulatory authorities across two main categories: changes in drug exposure and enhanced central nervous system (CNS) effects.

Official Contraindications

The following combinations are strictly prohibited according to regulatory labeling:

  • Co-administration with Oxybates (e.g., Sodium Oxybate) or Thalidomide due to the documented risk of severe, additive CNS depression.
  • Use in patients with a history of experiencing complex sleep behaviors (such as sleep-driving or sleepwalking) while taking eszopiclone.

Pharmacokinetic and Exposure Interactions

Eszopiclone is primarily metabolized via the CYP3A4 enzyme pathway. Co-administration with potent CYP3A4 inhibitors (e.g., ketoconazole) significantly increases eszopiclone plasma exposure (AUC), as official studies show an over twofold increase. Conversely, CYP3A4 inducers (e.g., rifampicin) are expected to reduce the drug's systemic exposure and therapeutic effect. Exposure is officially documented to be increased approximately 2-fold in patients with severe hepatic impairment.

Pharmacodynamic Effects and Constraints

  • CNS depressants (including opioids, benzodiazepines, tricyclic antidepressants) and alcohol (ethanol) cause additive psychomotor impairment and enhanced CNS-depressant effects.
  • Administration with or immediately after a heavy, high-fat meal reduces the rate of absorption, which is expected to reduce the effect on sleep onset.

Mechanism of Action

Targeted Modulation of the Central Inhibitory System

Eszopiclone acts as a positive allosteric modulator (PAM), enhancing the function of the brain's primary inhibitory neurotransmitter, GABA, at the GABA-A receptor complex. By binding to a specific site on the receptor, the drug increases the frequency and duration of the channel opening, initiating a sequence of molecular events that increase central inhibitory signaling.


Cascade of Inhibition and Neuronal Hyperpolarization

This enhanced receptor function leads to a significant influx of chloride ions ( Cl^-) into the postsynaptic neuron, resulting in neuronal hyperpolarization (making the cell resistant to excitation). This physiological change functionally translates into a reduction in overall Central Nervous System ( CNS) excitability and inhibition of central arousal signals, creating the necessary conditions for a state of reduced neural function.


Mechanistic Specificity and Functional Constraints

The drug demonstrates comparable affinity for major GABA-A receptor alpha subunits (alpha 1, alpha 2, alpha 3, alpha 5), which helps shape the drug's physiological profile resulting from prolonged GABA-A receptor engagement. However, this continuous engagement of the receptor complex is subject to the inherent physiological constraint of adaptive changes over time, which may lead to a reduced physiological response due to altered receptor function.

Dosage and Administration Information

How Esleep (Eszopiclone) is Used

The usage of Esleep is determined by specific instructions. The medication is delivered exclusively via the oral route as a film-coated tablet, available in 1 mg, 2 mg, and 3 mg strengths. Administration is patterned for once-daily use, taken immediately before bedtime.


Dosing and Administration Parameters

Parameter Requirement
Starting Dose (Adults) 1 mg immediately before the intended time of sleep.
Maximum Daily Dose Must not exceed 3 mg for the general adult population.
Sleep Window The patient must have at least 7 to 8 hours available for sleep after administration.
Food Constraint Should not be taken with or immediately after a heavy, high-fat meal to avoid slowing absorption and delayed effect.
Physical Handling The tablet must be swallowed whole and should not be crushed or broken.

Use Duration and Population Adjustments

The treatment is generally intended for the shortest duration necessary, though efficacy has been observed for up to 6 months. If insomnia symptoms persist after 7 to 10 days of use, the continuing necessity of the medicine should be re-evaluated.

Administration guidelines include specific dose restrictions for certain groups:

  • Older Adults (Geriatric): The total daily dose must not exceed 2 mg.
  • Severe Hepatic Impairment: The total daily dose must not exceed 2 mg.
  • Missed Dose: If a dose is missed, it is not to be doubled, and the next dose should be taken at the next scheduled time only when sleep is desired.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Esleep (Eszopiclone)


Evidence for Use in Chronic Primary Insomnia

The core evidence for Esleep comes from numerous randomized, controlled trials (RCTs) which have explored Eszopiclone in settings characterized by chronic difficulties with falling asleep and staying asleep. These studies were used in research exploring how symptoms change over time across both the adult and older adult populations.

Research examined outcomes related to sleep initiation and sleep maintenance, measured by both objective monitoring and patient-reported outcomes describing perceived discomfort. Findings describe patterns observed in the studies where measurements of sleep latency were shorter and sleep maintenance parameters were longer than those recorded in the placebo group over short-term (2 to 6 weeks) and intermediate-term (up to 6 months) study durations. This evidence contributes to the broader evidence landscape related to core sleep parameters.


Studies on Insomnia Coexisting with Other Health Conditions

Research has also explored Eszopiclone in study settings involving sleep problems coexisting with other stable medical or mental health issues, such as Major Depressive Disorder or Chronic Low Back Pain. These trials were typically structured as adjunctive therapy.

Studies report how symptoms evolved in the observed populations, and findings describe patterns observed that were generally similar to the measurements seen in primary insomnia trials. However, sample sizes were modest for these specific comorbid groups, meaning the evidence quality varies across studies.


What Is Still Uncertain About the Research for Esleep

While extensive research exists for chronic primary insomnia, the evidence base highlights areas where knowledge is less complete. The follow-up durations for long-term controlled studies were limited to six months. Consequently, there is limited information for long-term outcomes beyond that point.

Additionally, comparative evidence is lacking between Eszopiclone and non-pharmacological approaches, like Cognitive Behavioral Therapy for Insomnia (CBT-I), across all age groups. Study results reflect the specific conditions under which they were conducted and do not determine whether an individual will respond similarly.

Key Studies & References

  1. Efficacy of Eszopiclone in Elderly Patients with Insomnia

Frequently Asked Questions (FAQ)

Common questions about Esleep (FAQ)


Q: Can Esleep be taken at the same time as cold or allergy medicine?

Official labeling advises caution when Esleep is combined with other central nervous system (CNS) depressants, which includes many cold and allergy medicines. Combining them can increase CNS effects like drowsiness, dizziness, trouble concentrating, and impaired coordination. Official product information emphasizes that disclosure of all other medicines being taken to a healthcare provider is important before using Esleep.

Q: Is there a risk of becoming dependent on Esleep?

Yes, regulatory bodies classify Esleep as a Schedule IV federally controlled substance because it carries a potential risk for misuse, abuse, and dependence. Use for durations longer than recommended may be associated with an increased potential for developing both physical and psychological dependence. This risk is described in regulatory documents as related to the class of medications Esleep belongs to.

Q: Can a patient stop taking Esleep suddenly?

Regulatory warnings advise against abruptly stopping or rapidly reducing the dosage of Esleep. Stopping the medicine suddenly can lead to the experience of withdrawal symptoms or a recurrence of the original sleep problem, known as rebound insomnia. Regulatory guidance describes that discontinuation of the drug is often managed by gradually reducing the dosage under the supervision of a healthcare professional.

Q: Does the effectiveness of Esleep change over time?

Official regulatory documents note that the body may develop some pharmacodynamic tolerance or physiological adaptation to certain effects of the drug over time. Clinical studies examining the continued sleep-promoting effects of Esleep generally monitored patient responses across intermediate-term use up to six months. This observation reinforces the need for regular review of treatment by a healthcare professional.

Q: What are the common misuses of Esleep that people should be aware of?

Regulatory bodies emphasize that Esleep should only be taken exactly as prescribed and warn against taking a larger dose than instructed. Misuse is associated with an elevated risk of severe adverse reactions, which include complex sleep behaviors like sleep-driving. These warnings are in place to ensure patient safety and compliance with official use conditions.

Q: What is the general expectation for improvement when starting Esleep?

Official regulatory guidance indicates that if treatment is appropriate, an effect may be noted shortly after starting the medicine. Product information states that if a person's insomnia persists or actually worsens after using the drug for 7 to 10 consecutive days, the continuing necessity of the medicine is an element that should be assessed by a healthcare professional.

Q: Can Esleep be used by people who have liver problems?

Regulatory documents indicate that patients with severe hepatic impairment (severe liver problems) must have their maximum dose restricted. The official information does not typically specify a dose adjustment for patients with mild-to-moderate hepatic impairment. This precaution is based on how the body processes the medication.

Q: Are there any known common interactions with herbal supplements and Esleep?

Official guidance instructs patients to inform their healthcare providers about all herbal products they use. For instance, the herbal supplement St. John's wort is commonly cited in regulatory-consistent information as potentially speeding up the body's breakdown of Esleep, which could reduce the drug's intended effect. This is related to the CYP3A4 enzyme pathway.

Q: What if I already take a vitamin supplement; can I still use Esleep?

Official patient advisories consistently recommend that patients disclose all supplements, herbs, and vitamins they are taking to a healthcare professional. While no specific vitamins are listed as contraindications in the primary regulatory warnings, the disclosure of this information is advised as a measure to manage any possible drug interactions.

Q: Does Esleep have a known interaction with alcohol consumption?

Yes, official labeling explicitly and strictly contraindicates the combination of Esleep with alcohol (ethanol). Both substances are central nervous system (CNS) depressants, and combining them significantly increases additive sedative effects, next-day impairment, and the risk of complex sleep behaviors.

Q: Is it true that Esleep can cause unusual dreams?

Yes, official regulatory side effect lists include abnormal dreams as a reported adverse reaction. This effect is listed in the category of common side effects, meaning it was reported by 1% to 10% of patients in clinical trials. It falls under the general classification of Psychiatric Disorders.

Q: What does official guidance say about combining Esleep with other sleep medications?

Official warnings prohibit the co-administration of Esleep with certain other powerful central nervous system (CNS) depressants like Oxybates. Regulatory guidance describes that concurrent use of other prescription sedative or hypnotic drugs, including over-the-counter sleep aids, is generally discouraged unless specifically determined appropriate by a healthcare professional.

Q: Does Esleep work for people who have trouble staying asleep, not just falling asleep?

Yes, regulatory product information states that Esleep is used to treat insomnia characterized by both difficulty falling asleep (sleep initiation) and difficulty staying asleep (sleep maintenance). Clinical studies reviewed by regulatory agencies included outcomes that examined effects on both of these core sleep parameters.

Q: Can Esleep cause changes in mood or behavior?

Official labeling includes warnings about the potential for abnormal thinking and behavioral changes. Reported effects in this category may include bizarre behavior, agitation, hallucinations, and a worsening of existing depression. These warnings highlight the drug's effect on central nervous system function.

Q: What research exists about Esleep and its effect on respiratory function?

Official warnings advise that caution should be exercised when prescribing Esleep to patients with compromised respiratory function due to the drug's central nervous system depressant properties. One European regulatory document specifically lists Severe Respiratory Insufficiency as a contraindication.

Q: Are there any interactions between Esleep and common anti-depressants mentioned in regulatory documents?

Yes, regulatory-consistent information notes that many antidepressants, including Selective Serotonin Reuptake Inhibitors (SSRIs) and Tricyclic Antidepressants, can increase the CNS depressant effects of Esleep. Combining these medicines may lead to enhanced drowsiness, dizziness, and confusion.

Q: What are the official guidelines regarding using Esleep if you occasionally wake up in the middle of the night?

Official patient guidance clarifies that if you wake up in the middle of the night and cannot fall back asleep, you may take Esleep, provided you did not take it earlier and will be able to get a subsequent period of at least 7 to 8 hours of time remaining in bed. This condition is intended to mitigate the risk of next-day impairment.

Q: Is Esleep associated with weight gain or loss, according to official data?

The side effect profiles in regulatory-supported data list both weight gain and weight loss as possible effects. These are classified as uncommon effects, meaning they were reported by less than 1% of patients in clinical trials under the Metabolic System-Organ-Class.

Q: What if I forget to take Esleep when I usually do?

Official patient guidance states that if a person misses a dose and will not be able to get a full night's sleep (at least 7 hours) after taking the missed dose, they should skip that dose entirely. The person should wait to take the next dose at the next regularly scheduled time, provided a full night's sleep is available.

Q: What are the official restrictions on using Esleep if a patient has kidney problems?

Regulatory-consistent information indicates that no dosage adjustment is typically considered necessary for patients with renal impairment (kidney problems). This is because only a small fraction of the drug is excreted by the kidneys.

Q: How is the risk of overdose described in official documents for Esleep?

Regulatory documents explicitly warn that misuse and abuse of Esleep can result in overdose or death, particularly when the medicine is combined with other central nervous system depressants, such as opioids or alcohol. Symptoms of an overdose may include profound difficulty breathing and a significant change or loss of consciousness.

How should Esleep be stored and disposed of?

How to Store and Dispose of Esleep (Eszopiclone)

The storage and disposal of Esleep must adhere to specific conditions mandated by regulatory labeling to maintain the product's quality and safety.

Storage Requirements

Esleep must be stored at controlled room temperature, specifically between 20 C and 25 C (68 F and 77 F), with permitted excursions up to 30 C.

Condition Requirement
Environmental Protection Keep in a dry place; protect from moisture and excessive heat.
Container Integrity Must be dispensed in a tight, light-resistant container and kept tightly closed.
Child Safety Mandatory to keep out of reach of children.

Disposal Instructions

Official disposal rules prohibit flushing Esleep down the toilet or pouring it into a drain. The recommended disposal method is to utilize a drug take-back program. If one is unavailable, the unused tablets should be mixed with an undesirable substance, placed in a sealed bag, and then discarded in the trash.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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