Lunox 2

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Lunox 2

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Medically reviewed

Rosario Oropesa

Last updated on 22/12/2025

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 Lunox 2

Quick Facts

Property Description
Active ingredient Eszopiclone
Form Film-coated tablet
Pharmacological class Sedative-hypnotic, Nonbenzodiazepine
Common use Sleep disorders (initiation and maintenance)
Origin Synthetic

What Type of Medicine is Lunox 2?

Lunox 2 is a prescription-only medication whose active ingredient is Eszopiclone, a compound classified pharmacologically as a sedative-hypnotic agent. Its primary function is to modulate activity in the central nervous system to induce and maintain sleep. Eszopiclone is categorized as a nonbenzodiazepine hypnotic, commonly included in the group of compounds known as Z-drugs. Pharmacological studies consistently confirm the benefit of this class in addressing issues of poor sleep quality, making its use clinically recognized for adults struggling with chronic sleep difficulty.

Composition, Origin, and Pharmaceutical Form

The active constituent, Eszopiclone, is a synthetic compound derived from the cyclopyrrolone chemical class. Eszopiclone is chemically defined as the S-isomer of zopiclone, meaning it is a purified and specific form of the older racemic molecule, intended to provide targeted efficacy. Lunox 2 is a single-ingredient product formulated as a white to light-blue film-coated tablet designed for oral administration. The medicine's specific formulation is optimized for controlled release, a feature that differentiates it from certain immediate-release sleep aids.

Lunox 2's General Therapeutic Purpose

The general therapeutic purpose of this sedative-hypnotic is to support adults who experience difficulty with sleep disorders, such as those who have trouble settling down at night. By enhancing the inhibitory signals in the brain via the Gamma-aminobutyric acid (GABA) receptor complexes, the medicine aids in decreasing the level of mental arousal. This action supports the natural sleep process, helping patients achieve both sleep induction and necessary sleep maintenance for a complete and restful period of recuperation.

What side effects are possible with Lunox 2?

Possible side effects and safety information

The safety profile of Lunox 2 (Eszopiclone) is defined by official regulatory documents, classifying potential adverse reactions by frequency and physiological system.

Frequency-Classified Adverse Reactions

The official label states that the most frequent adverse reaction is an unpleasant taste (dysgeusia), which is classified as very common. Reactions classified as common include headache, somnolence (drowsiness), dizziness, dry mouth, nausea, and respiratory infection. These effects are grouped by organ system, such as Nervous System Disorders (somnolence, headache) and Gastrointestinal Disorders (dry mouth, nausea) [Source: Regulatory Authorities].

Serious Adverse Reactions and Behavioral Effects

The prescribing information highlights the potential for serious adverse reactions that have been documented. These include complex sleep behaviors such as sleepwalking or sleep-driving performed while not fully awake, which may lead to injury. Severe anaphylactic and anaphylactoid reactions, including angioedema (swelling) of the tongue and throat, are also listed. Additionally, new onset or worsening of depression, including suicidal thoughts or actions, has been reported [Source: Regulatory Authorities].

Population and Time-Related Safety

Specific safety considerations are noted for certain populations. Older adults may have increased sensitivity to the effects of the medicine, resulting in an elevated risk of falls and cognitive impairment. For patients with severe hepatic impairment, the body's clearance of the medicine is reduced, increasing drug exposure. The label also addresses time-related safety, noting the potential for next-day impairment of motor skills and alertness, as well as the risk of dependence and withdrawal effects if treatment is abruptly discontinued [Source: Regulatory Authorities]. Lunox 2 is contraindicated in patients with a history of a complex sleep behavior after use.

Overdose and Emergency Response

Overdose Manifestations

Overdose on Eszopiclone is primarily characterized by Central Nervous System (CNS) depression, which is an exaggeration of the medicine’s therapeutic effect. Officially documented manifestations include severe somnolence and mental status changes, potentially escalating to physical signs such as staggering, or a severe outcome like unconsciousness or coma. The regulatory profile states that severe or life-threatening outcomes can occur, specifically including serious breathing problems and respiratory depression. The risk of these severe consequences, including death, is notably increased in cases of co-ingestion with other CNS depressants.

Mandated Emergency Response

The official labeling mandates that immediate medical attention be sought. Regulators require calling emergency services (911) or the poison control helpline immediately if the affected individual has collapsed, experienced a seizure, has trouble breathing, or cannot be awakened from loss of consciousness. Clinically, management involves procedural steps such as providing supportive treatment, gastric lavage, and close monitoring of vital signs. While the agent Flumazenil may be considered for intervention, the prescribing information notes that no specific antidote is known to completely reverse all overdose effects. Prescribers are cautioned to dispense the least number of tablets feasible to mitigate the risk of intentional overdose.

Therapeutic Uses of Lunox 2

What Lunox 2 Treats: Main Uses and Benefits

Lunox 2 (Eszopiclone) is primarily used in the therapeutic domain of Sleep Medicine to provide supportive symptomatic relief for adults experiencing persistent, non-restorative sleep. It is applied in addressing patterns of sleep disturbance that interfere with daily functioning. The medication is commonly used to help with the treatment of insomnia.

This supportive management is applicable across conditions presenting with chronic sleep deficits. It is considered relevant for easing the symptom load associated with difficulty falling asleep (Sleep Onset Latency), as well as managing the symptom cluster of frequent nocturnal awakenings (Sleep Maintenance Issues). These issues, which may affect a patient's long-term well-being, are often addressed in clinical contexts where support for increased total sleep duration may be appropriate. The goal of this supportive relief is to help maintain a sense of stability when symptoms are more noticeable.

“This medication is commonly applied in scenarios where short-term symptomatic assistance is needed to address persistent sleep disturbances that disrupt daily stability.”

Quick Fact: Relief for Sleep Deficits
Symptom Cluster Focus Sleep Onset, Sleep Maintenance
Condition Category Chronic Insomnia
Primary Benefit Supportive assistance for total sleep duration

Regulatory References

  1. Eszopiclone Official Labeling, DailyMed (NIH)

Eligibility and Restrictions for Use

Lunox 2 (Eszopiclone) is approved for use by adults (18 years of age and older) for the treatment of insomnia. Eligibility for this medicine is strictly defined by regulatory bodies based on age, medical history, and pre-existing conditions.


Absolute Contraindications

Lunox 2 must not be used if a patient has a known hypersensitivity to eszopiclone or any other ingredient in the formulation. Use is also strictly prohibited for any patient who has previously experienced a complex sleep behavior (such as sleepwalking or sleep-driving) after taking Lunox 2 or any other sedative-hypnotic agent.

Regional labeling may also contraindicate use in patients with conditions such as severe hepatic insufficiency, severe respiratory insufficiency, severe sleep apnoea syndrome, and myasthenia gravis.


Population Restrictions

Population Group Eligibility Status (Regulatory Wording)
Pediatric Patients (< 18 years) Use is not established and not recommended.
Older Adults (≥ 65 years) Permitted, but total daily dose must not exceed 2 mg.
Severe Hepatic Impairment Permitted, but total daily dose must not exceed 2 mg.
Pregnancy Use only if the potential benefit justifies the potential risk to the fetus.

Patients with a history of depression or substance abuse are required to use the medicine with special caution.

What should I know about interactions with other medicines?

Lunox 2 Interactions with other medicines and products

Official regulatory information addresses interactions of Lunox 2 (Eszopiclone) through both pharmacokinetic and pharmacodynamic mechanisms.

Interaction Classifications and Risk

Classification Official Constraint / Requirement
Contraindicated Combination Co-administration with Potent CYP3A4 Inhibitors (e.g., Ketoconazole, Clarithromycin) is formally prohibited in elderly patients (aged 65 years and older).
Significant Exposure Increase Potent CYP3A4 Inhibitors increase Eszopiclone exposure (AUC) by approximately 2.2-fold due to inhibition of metabolic clearance.
CNS Depression Risk Co-administration with Alcohol (Ethanol) or other CNS Depressants (including opioids and benzodiazepines) results in documented additive depressant effects.

Procedural and Population-Specific Constraints

The regulatory profile outlines specific conditions for use based on clearance and consumption timing:

  • Timing Rule: The official label states that the Eszopiclone dose must be skipped if alcohol has been consumed that evening, due to the enhanced CNS-depressant effects.
  • Food Interaction: For faster sleep onset, the medication should not be administered with or immediately after a heavy, high-fat meal, as this is documented to reduce the peak plasma concentration (C max) and delay absorption time.
  • Hepatic Impairment: In patients with severe hepatic impairment, the total dose is restricted and must not exceed 2 mg, reflecting impaired clearance in this population.
  • Exposure Decrease: Potent CYP3A4 Inducers (e.g., Rifampicin) are noted to potentially decrease the exposure of Lunox 2, which may affect the product's intended action.

Mechanism of Action

Central Nervous System Inhibitory Enhancement

Lunox 2 functions by acting as a Positive Allosteric Modulator on the central GABA-A receptor complex, the key molecular structure that mediates inhibitory neurotransmission. This mechanism directly enhances the gamma-aminobutyric acid (GABA) pathway's inherent inhibitory signal, which influences overall neuronal excitability through a reduction in neuronal firing rates.

Suppression of Key Arousal Circuits

The enhanced inhibition initiates a physiological cascade, causing neurons to become hyperpolarized through increased chloride ion influx, making them highly resistant to excitatory input. This systematic suppression primarily targets the Ascending Reticular Activating System (ARAS), functionally inhibiting the brain circuits responsible for wakefulness, which rapidly shifts the physiological state into one of profound central sedation and maintains a suppressed arousal state.

Dosage and Administration Information

Administration Guidelines for Lunox 2 (Eszopiclone)

Lunox 2 is administered orally as a single film-coated tablet immediately before going to bed, and the tablet must be swallowed whole. The medicine should not be re-administered during the same night. A core requirement for its use is ensuring that the patient can obtain at least seven to eight hours of sleep after taking the dose.


Standard and Adjusted Dosing Principles

Patient Population Recommended Starting Dose Maximum Total Daily Dose
Non-Elderly Adults 1 mg or 2 mg 3 mg
Elderly/Debilitated 1 mg 2 mg
Severe Hepatic Impairment 1 mg 2 mg
Taking Potent CYP3A4 Inhibitors 1 mg 2 mg

For non-elderly adults, the maximum dose is 3 mg once daily; dosing can be increased from the starting dose if clinically indicated. Conversely, the total dose for older adults, patients with severe liver dysfunction, or those taking potent CYP3A4 inhibitors must not exceed 2 mg daily. The drug is not intended for use in pediatric patients under 18 years of age.


Timing and Duration of Use

Lunox 2 should be taken on an empty stomach. Taking the tablet with or immediately after a heavy, high-fat meal results in slower absorption, which is expected to reduce the effect on sleep onset. Treatment should be for the minimum duration necessary, and if the patient's sleep difficulties persist after 7 to 10 days of use, a re-evaluation of the medicine's use is recommended. If a dose is missed, it should not be taken at any other time, and the patient should resume the schedule on the next night.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Lunox 2


Evidence for Use in Chronic Insomnia

The core evidence base for Lunox 2 was developed in research exploring persistent difficulty falling asleep (sleep induction) and staying asleep (sleep maintenance) comes from well-designed Randomized Controlled Trials (RCTs). These trials are considered the primary source of evidence for regulatory evaluation, and many were further summarized in broader scientific reviews known as meta-analyses. Researchers primarily used objective sleep laboratory measures (polysomnography) and patient-reported outcomes to evaluate measurements of the time taken to fall asleep and the total time spent sleeping throughout the night.

Studies reported measurements of changes in sleep patterns across the observed time intervals; this research explored short-term symptom changes. For example, evidence related to the effect on next-day functioning or cognitive performance was observed in some studies, but limitations in the data regarding this specific axis were noted across the entire body of research.


Long-Term Studies and Follow-Up Duration

Studies for Lunox 2 have primarily focused on short and intermediate use, typically spanning two weeks up to three months. However, research has evaluated the patterns observed during sustained administration of the medicine in specific large-scale RCTs that monitored patients for up to six months of nightly use. Some evidence was derived from settings with varying symptom burdens over even longer periods, with a limited number of observational extensions describing patient patterns up to twelve months.

Long-term outcomes are not fully characterized in the available research, and available evidence is limited for patterns observed beyond six months of continuous use.


Research in Specific Patient Groups

Lunox 2 was evaluated in specific populations outside the general adult chronic insomnia population. Studies were conducted on older adults (ages 65 and up) in research exploring short-term symptom changes. In addition, research examined the use of Lunox 2 in patients whose insomnia was associated with chronic medical issues, such as those with chronic low back pain or rheumatoid arthritis, which are conditions marked by functional limitations.


Research Limitations and Areas of Uncertainty

A consistent limitation across the body of research relates to subjective side effects. Studies documented that an unpleasant taste (dysgeusia) was associated with high frequency of reporting in some studies, which was a noted limitation regarding persistence of use. Additionally, questions have been raised about the certainty regarding the sustained maintenance of effect beyond six months. Evidence quality varies across studies when examining next-day functioning, and findings describe group patterns, not personal outcomes.

Frequently Asked Questions (FAQ)

Common questions about Lunox 2 (FAQ)


Q: How quickly does Lunox 2 typically start working?

According to regulatory documents, the active ingredient in Lunox 2 is rapidly absorbed after being taken orally. Studies on pharmacokinetics indicate that peak blood concentrations, which are associated with the maximum effect, are generally achieved approximately one hour after administration. This rapid absorption aligns with official guidance that the medicine is typically taken immediately prior to sleep.


Q: Can Lunox 2 be taken by people with kidney problems?

Official product information, which details how the medicine is cleared by the body, indicates that dose adjustment is not necessary for patients who have renal impairment (kidney problems). This is because less than 10% of the medicine is excreted unchanged by the kidneys. The dose constraints are generally not altered solely on the basis of kidney function, based on official product information.


Q: Is there a generic version of Lunox 2 available?

Regulatory databases confirm that Lunox 2, which contains the active ingredient Eszopiclone, is available as a generic medicine. The generic version is marketed under an Abbreviated New Drug Application (ANDA) status, indicating regulatory approval for the generic product to be used in place of the brand-name product.


Q: How does Lunox 2 compare to older medications used for this purpose?

Official sources describe Lunox 2 as a nonbenzodiazepine hypnotic medicine, which places it within the group of compounds often referred to as 'Z-drugs.' This means it is structurally different from, yet shares some of the same pharmacological activity as, older classes of sedative-hypnotics, such as benzodiazepines. The specific formulation of Lunox 2 is chemically defined as the purified S-isomer of zopiclone.


Q: Is Lunox 2 safe for older adults (seniors)?

Official information indicates that Lunox 2 is permitted for older adults (those aged 65 and up), but there are specific restrictions. Official constraints define a lower maximum daily amount for older or debilitated adults. This constraint is in place because older individuals may have increased sensitivity to the medicine’s effects, which could lead to a higher risk of impaired motor function and cognitive performance.


Q: Does Lunox 2 affect fertility or pregnancy?

Regarding pregnancy, the official labeling indicates that the available research is insufficient to fully assess the drug-associated risk of major birth defects or miscarriage. Separately, regulatory documents state that the effects of Lunox 2 on human fertility have also not been adequately evaluated in available studies.


Q: Is Lunox 2 safe to use during breastfeeding?

Official regulatory information confirms that the active ingredient in Lunox 2 is present in human breast milk. However, studies have not adequately evaluated the potential effects of this exposure on a breastfed infant. The potential effects of using this medicine while breastfeeding are unknown.


Q: What are the long-term effects of taking Lunox 2?

Clinical trials supporting the documented effectiveness of Lunox 2 were generally conducted for up to six months. Beyond this duration, long-term outcomes are not fully characterized in the available research. However, official safety information indicates that prolonged use carries a known risk of dependence and potential next-day impairment of alertness and driving ability, which may persist over time.


Q: Where can I find the official regulatory information (like FDA or EMA documents) on Lunox 2?

The full official U.S. labeling, including the complete prescribing information, is publicly available and can be located through the DailyMed database, which is provided by the National Institutes of Health (NIH). Similar official documents are also available through other regulatory bodies in different regions, such as the European Medicines Agency (EMA).


Q: Is Lunox 2 considered a controlled substance?

Yes, in the United States, the active ingredient in Lunox 2, Eszopiclone, is classified as a Schedule IV federally controlled substance. This classification, assigned by the Drug Enforcement Administration (DEA), is due to its potential for misuse, abuse, and dependence.


Q: What should I do if a side effect of Lunox 2 seems serious?

Official guidance states that if complex sleep behaviors, such as sleep-driving or sleepwalking, are experienced, the medication should be discontinued. For any serious adverse event, the regulatory information recommends consulting a healthcare professional or emergency services for guidance.


Q: Will Lunox 2 still work if I feel like the condition is improving?

Official guidelines indicate that if sleep difficulties persist or return after an initial period of improvement, the need for continued use is subject to reevaluation by a healthcare professional. Similarly, if insomnia persists after 7 to 10 days of use, the medicine's continued necessity and the patient's underlying condition should be reassessed.


Q: How soon after stopping Lunox 2 does the medicine fully leave the body?

Official pharmacokinetic studies indicate how the medicine is metabolized and cleared. In healthy, non-elderly adults, Lunox 2 is eliminated from the body with a mean terminal-phase elimination half-life (t1/2) of approximately 6 hours. This half-life is the time it takes for the concentration of the medicine in the blood to decrease by half.


Q: Is it mandatory to have a specific diagnosis before being prescribed Lunox 2?

Lunox 2 is formally indicated for the treatment of insomnia. Official documents define its use as being under the direction of a healthcare professional who assesses the patient and confirms the need for this medicine.


Q: What is the typical duration of its effect after one administration?

Regulatory administration guidelines emphasize that Lunox 2 must be taken only when the patient can get at least seven to eight hours of sleep. This requirement indirectly reflects the intended duration of the medicine's effect. Pharmacokinetic data further indicates the medicine’s elimination half-life is approximately 6 hours.

How should Lunox 2 be stored and disposed of?

Official Storage and Handling

Lunox 2 (Eszopiclone) must be stored at Controlled Room Temperature, which is maintained between 20 C and 25 C (68 F and 77 F). The medication must be protected from both excess moisture and freezing to maintain its stability. For packaging, the tablets must remain in the original container and the cap must be kept tightly closed.

Child Safety and Disposal

Due to its classification, Lunox 2 must be stored in a safe place out of the reach of children and secured to prevent theft or misuse. The product must not be used after the expiration date on the package. The preferred method for disposing of unused or expired tablets is through an authorized drug take-back program. As an alternative, tablets may be mixed with an undesirable substance, placed in a sealed container, and discarded in the household trash; the medicine must not be flushed down the toilet.

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

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