ImportantThis page is general information, not a prescription. Don't start, stop, or change a medicine without talking to your provider or pharmacist.
Overview
It's a controlled substance. Many people notice a bitter, metallic taste.
What it's used for
- Insomnia
How to take it
- Take it right before bed, only with 7 to 8 hours to sleep.
- Don't take it with or right after a heavy meal.
Your dose depends on your health and other medicines. Always follow your prescription label, and ask your pharmacist if anything is unclear.
Side effects
Common side effects
- Bitter taste
- Next-day drowsiness
- Dizziness
- Headache
Call 911Sleepwalking, sleep-driving, or other activities you don't remember
Call 911Thoughts of suicide or harming yourself. Call or text 988 any time.
Warnings
- Boxed warning: complex sleep behaviors can cause serious injury or death.
Other medicines, foods, and alcohol
- Alcohol, opioids, and other sedating medicines can dangerously slow breathing.
- Ketoconazole and similar medicines raise its level.
Tell your provider and pharmacist about every medicine, vitamin, and supplement you take.
Pregnancy and breastfeeding
Talk with your provider.
Missed doses, overdose, and storage
If you miss a dose
Only take it at bedtime. If you forget, skip it that night.
If someone takes too much
Call Poison Control at 1-800-222-1222 or get help online at poison.org. Call 911 if the person collapses, has a seizure, has trouble breathing, or can't be woken.
Storing it
Store at room temperature, away from heat and moisture (not in the bathroom), and out of reach of children and pets.
Conditions it's used for
Sources
- DailyMed: FDA drug label for Eszopiclone (U.S. National Library of Medicine)
- MedlinePlus: Drugs, herbs, and supplements
- FDA: Drugs@FDA
Last updated 2026-11-13.