eszopiclone vs zolpidem
PlainMeds reviewed this comparison against our methodology in August 2026. It places FDA and CMS record fields side by side, without recommending either medication.
Side-by-side comparison of eszopiclone and zolpidem. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Lunesta
Ambien
Eszopiclone (Lunesta) is a medicine that helps you fall asleep and stay asleep. It is used to treat insomnia.
Zolpidem (Ambien) is a medication that helps you fall asleep faster. It is for short-term use only.
Eszopiclone is used to treat insomnia, which means you have trouble falling asleep or staying asleep. It can help you fall asleep faster and stay asleep longer. Studies have shown it works for up to 6 months.
Zolpidem is used to treat insomnia when you have trouble falling asleep. It can help you fall asleep faster. Studies have shown it can decrease the time it takes to fall asleep for up to 35 days.
Eszopiclone works by slowing down activity in your brain. This helps you relax and fall asleep. It affects certain chemicals in your brain that regulate sleep.
Zolpidem affects a chemical in your brain called gamma-aminobutyric acid (GABA). GABA helps to slow down brain activity. By affecting GABA, zolpidem helps you to feel sleepy.
- • Unpleasant taste
- • Headache
- • Feeling sleepy
- • Respiratory infection
- • Dizziness
- • Drowsiness
- • Dizziness
- • Diarrhea
- • Drugged feeling
- Insomnia 3,888
- Dysgeusia 3,854
- Nausea 1,382
- Middle Insomnia 1,213
- Fatigue 1,185
- Nausea 8,384
- Fatigue 8,143
- Pain 6,377
- Insomnia 6,249
- Headache 6,222
Eszopiclone can cause complex sleep behaviors like sleepwalking, sleep driving, and doing other activities while not fully awake. Some of these can lead to serious injuries or even death. Stop taking eszopiclone right away if this happens.
Zolpidem can cause complex sleep behaviors like sleepwalking, sleep driving, and doing other activities while not fully awake. Some of these events can cause serious injuries or even death. Stop taking zolpidem right away if you experience any of these behaviors.
It is not known if eszopiclone can harm your unborn baby. Talk to your doctor if you are pregnant, plan to become pregnant, or are breastfeeding.
Taking zolpidem late in pregnancy may cause breathing problems and sleepiness in the newborn. If you are breastfeeding, pump and discard breast milk during treatment and for 23 hours after taking zolpidem.
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How to Read This eszopiclone vs zolpidem Comparison
eszopiclone is classified in the Non-Benzodiazepine Hypnotic (Z-Drug) drug class, while zolpidem sits within the Non-Benzodiazepine Hypnotic (Z-Drug) class. Because both drugs share the same classification, they are often considered interchangeable in theory, but clinical outcomes rarely track that cleanly. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, eszopiclone has 11,522 submissions while zolpidem has 35,375. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for eszopiclone or zolpidem.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.