DoseUses
IV

Nonbenzodiazepine hypnotic ("Z-drug") · Schedule IV

Eszopiclone Lunesta

Eszopiclone (Lunesta) is a Z-drug sleep medicine for trouble falling or staying asleep. It is a Schedule IV controlled substance. Like zolpidem, it carries a boxed warning for complex sleep behaviors, and a bitter or metallic taste is a common side effect.

Prescription medicine

Draft, awaiting medical review. Updated October 5, 2026.

Onset
About 1 hour
Duration
7 to 8 hours
Naloxone reverses it?
No
Dependence risk
Moderate

Lunesta (Eszopiclone) at a glance: schedule, half-life, and class

Generic name
Eszopiclone
Brand names
Lunesta
Drug class
Nonbenzodiazepine hypnotic ("Z-drug")
US legal status
Schedule IV, prescription only
Approved uses
Insomnia (sleep onset and maintenance)
Forms
Tablets
Onset
About 1 hour
Half-life
About 6 hours
Broken down by
CYP3A4 and CYP2E1
FDA boxed warning
Complex sleep behaviors

Lunesta uses: what eszopiclone is prescribed for

Eszopiclone is approved for insomnia, helping people fall asleep and stay asleep. Unlike some sleeping pills, it was studied for up to six months of nightly use.[1]

Lunesta dosage: how eszopiclone is usually prescribed

The figures below come from the FDA-approved label and describe how prescribers typically use eszopiclone. They are not personal dosing advice. A prescriber sets the dose for each person and adjusts it over time.[1]

GroupTypical doseLabel guidance
Adults1 mg right before bedCan be raised to 2 or 3 mg
Older adults, severe liver disease1 mgMaximum 2 mg
With strong CYP3A4 inhibitors1 mgMaximum 2 mg

The FDA lowered the starting dose to 1 mg in 2014 because 3 mg can impair driving and memory the next day even when people feel alert.

Lunesta (eszopiclone) side effects and risks

FDA boxed warning

  • Complex sleep behaviors, including sleepwalking, sleep-driving, and other activities while not fully awake, have caused serious injuries and deaths. Stop the medicine if one occurs, and do not take it if you have had one before.[2]

Common side effects include unpleasant taste, headache, drowsiness, dizziness, and dry mouth. Next-day impairment can occur, especially at higher doses.[1]

Lunesta interactions: what not to mix with eszopiclone

Combined withWhat happensLabel guidance
OpioidsProfound sedation, slowed breathingAvoid unless no alternative
AlcoholGreater impairmentAvoid
Other sedativesAdditive sedationAvoid combining
Ketoconazole, clarithromycin, ritonavirRaise eszopiclone levelsMaximum 2 mg

This is not a full list. A pharmacist can check a complete medication list, including supplements and over-the-counter products.[1]

Lunesta overdose: signs of eszopiclone overdose and what to do

Overdose causes excessive sleepiness progressing to coma, especially with alcohol or other sedatives.[1]

If someone may have overdosed

  • Call 911 if the person is unresponsive, hard to wake, or breathing slowly.
  • For advice when the person is awake and stable, call Poison Help at 1-800-222-1222 (US, free, 24 hours).
  • If opioids could be involved, including pills not from a pharmacy, give naloxone if you have it. Naloxone does not reverse eszopiclone, but it will not harm the person.
  • Stay with the person and place them on their side if they are drowsy or vomiting.

Lunesta withdrawal timeline: how long eszopiclone withdrawal lasts

After regular use, stopping eszopiclone can cause rebound insomnia and mild withdrawal symptoms such as anxiety and abnormal dreams. Long-term users should taper with their prescriber.[1]

  1. Nights 1 to 3Rebound insomniaTemporary worsening of sleep.
  2. Days 1 to 7Withdrawal in some usersAnxiety, abnormal dreams, nausea, upset stomach.
  3. WeeksRecoverySleep usually normalizes.

Can you order Lunesta (eszopiclone) online legally?

Yes, but only with a valid prescription and only from a pharmacy licensed in your state. Many licensed pharmacies, including mail-order pharmacies run by insurers, fill eszopiclone prescriptions online and ship them. Buying eszopiclone from a website that does not require a prescription is illegal, and the product is often fake.[6][8]

  1. See a licensed clinicianA clinician evaluates you in person or by telemedicine and decides whether eszopiclone is appropriate.
  2. The prescription goes to a pharmacyPrescriptions for controlled medicines are usually sent electronically, straight from the prescriber to the pharmacy you choose.
  3. The pharmacy checks and fills itA pharmacist verifies the prescription and your identity, then dispenses the medicine in person or by mail.

Signs that an online seller is illegal:

  • It sells eszopiclone with no prescription, or after only a short online questionnaire.
  • It takes orders through social media, messaging apps, or email.
  • It asks for payment in cryptocurrency, gift cards, or money transfers.
  • It has no US street address, no state pharmacy license, and no pharmacist to speak to.
  • Its prices are far below those of ordinary pharmacies, or it ships from another country.

The FDA's BeSafeRx tool links to each state's license lookup, and the National Association of Boards of Pharmacy lists verified online pharmacies.[6][7]

Lunesta price: how much does Lunesta (eszopiclone) cost without insurance?

Generic eszopiclone is widely available.

What you pay depends on the strength, the number of doses, your insurance plan, and the pharmacy. Cash prices for the same prescription can differ several times over between pharmacies in the same town, so check current prices before you fill it.

Ways to pay less, legally:

  • Ask the prescriber whether a generic eszopiclone is available. FDA-approved generics work the same way as the brand and usually cost much less.
  • Compare cash prices between pharmacies before you fill the prescription.
  • Use a free prescription discount card, such as GoodRx or SingleCare, when you pay cash. These cards cannot be combined with insurance on the same fill.
  • For brand-name medicines, check the manufacturer's savings program or patient assistance program.
  • Ask about a 90-day supply or your insurer's mail-order pharmacy, which often lowers the cost per dose when your prescriber agrees it is appropriate.

Warning: A price far below what licensed pharmacies charge, especially with no prescription required, is a strong sign of an illegal seller and counterfeit medicine.[6]

Common questions about Lunesta (eszopiclone)

Why does Lunesta taste bad?

A bitter or metallic taste is one of the most common side effects, reported by about a third of people at higher doses.

Is Lunesta (eszopiclone) better than zolpidem?

Eszopiclone lasts longer, which may help people who wake during the night, but it is more likely to cause next-day grogginess.

Is Lunesta addictive?

It can cause dependence and has a lower but real risk of misuse. It is Schedule IV.

Can you buy Lunesta (eszopiclone) without a prescription?

No. Lunesta (eszopiclone) is a Schedule IV controlled substance in the US, so it is illegal to buy or possess it without a valid prescription. Websites and social media sellers that offer it without one are not legal pharmacies, and the DEA warns that pills sold this way are often counterfeit and can contain fentanyl. The legal route is a visit with a licensed clinician, in person or by telehealth, and a prescription filled at a state-licensed pharmacy. The FDA's BeSafeRx tool and the NABP's safe pharmacy list help confirm an online pharmacy is real.

Sources

  1. Lunesta (eszopiclone) prescribing information. DailyMed, US National Library of Medicine.
  2. FDA adds Boxed Warning for risk of serious injuries caused by sleepwalking with certain prescription insomnia medicines. US Food and Drug Administration, 2019.
  3. Controlled Substance Schedules. DEA Diversion Control Division.
  4. 21 CFR 1306.22, Refilling of prescriptions (Schedules III and IV). Electronic Code of Federal Regulations.
  5. Prescribing controlled substances via telehealth. US Department of Health and Human Services.
  6. BeSafeRx: Your Source for Online Pharmacy Information. US Food and Drug Administration.
  7. Safe Pharmacy. National Association of Boards of Pharmacy.
  8. One Pill Can Kill. US Drug Enforcement Administration.
  9. International drug control conventions. United Nations Office on Drugs and Crime.
Read the Eszopiclone guideKey takeaways, quick facts, and answers to common questions.

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In an emergency in the US, call 911. Poison Help: 1-800-222-1222.