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Eszopiclone Side Effects

The most commonly reported side effects of eszopiclone include fatigue, off label use, and pain, based on 69,897 FDA adverse event reports from 2004 to 2025. 7.1% of reports found the drug to be ineffective.

Eszopiclone side effects

Percentages show how often each reaction appears relative to total reports for eszopiclone.

1
Drug Ineffective7.1%4,990
2
Fatigue6.9%4,829
3
Off Label Use6.6%4,638
4
Pain6.2%4,362
5
Headache5.9%4,125
6
Drug Ineffective5.5%3,878
7
Dyspnoea5.5%3,821
8
Nausea5.4%3,755
9
Dysgeusia5.3%3,683
10
Diarrhoea4.9%3,438
11
Insomnia4.7%3,279
12
Pyrexia4.7%3,256
13
Rash4.6%3,203
14
Arthralgia4.5%3,153
15
Insomnia4.4%3,073

These are voluntary reports and do not establish that eszopiclone caused these reactions.

Report severity

77.5%Serious54,136 reports
38.4%Hospitalizations26,857 reports
12.5%Fatal8,751 reports

Seriousness is determined by the reporter, not by OpenClaim.

Eszopiclone drug interactions

Other drugs that appear in adverse event reports alongside eszopiclone. Drugs flagged as a suspected cause appear in the first column. Drugs taken at the same time but not suspected appear in the second.

Also suspected

1
Acetaminophen7.3%5,068
2
Quetiapine-fumarate5.8%4,055
3
Rituximab5.0%3,526
4
Oxycodone4.5%3,164
5
Etanercept4.5%3,149
6
Methotrexate4.5%3,142
7
Adalimumab4.5%3,114
8
Infliximab4.4%3,056
9
Tocilizumab4.3%3,038
10
Abatacept4.3%3,037
11
Prednisone4.1%2,858
12
Venlafaxine3.9%2,738
13
Pregabalin3.6%2,544
14
Leflunomide3.5%2,453
15
Diclofenac3.5%2,425

Taken alongside

1
Acetaminophen18.2%12,735
2
Pantoprazole-sodium11.1%7,785
3
Levothyroxine-sodium9.0%6,269
4
Aspirin7.8%5,426
5
Ergocalciferol7.7%5,387
6
Albuterol7.6%5,330
7
Omeprazole7.5%5,273
8
Prednisone7.5%5,229
9
Lorazepam7.1%4,941
10
Atorvastatin-calcium6.8%4,786
11
Ibuprofen6.7%4,712
12
Furosemide6.3%4,425
13
Amlodipine6.2%4,330
14
Gabapentin5.5%3,874
15
Lansoprazole5.5%3,830

Co-occurrence in adverse event reports does not establish a drug interaction. Patients often take multiple medications, and these lists reflect prescribing patterns rather than causal relationships. Consult a healthcare provider about potential drug interactions.

Who reports eszopiclone side effects

56.8% of eszopiclone adverse event reports involve female patients and 35.0% involve male patients. The largest age group is adult at 63%. These figures reflect who reports side effects, not underlying risk.

Sex

Female56.8%
Male35.0%
Unknown8.2%

Age group

< 20.4%
2–11<0.1%
12–170.3%
18–6463.4%
65+35.8%

What is eszopiclone used for

Conditions and purposes for which patients were taking eszopiclone when the adverse event was reported.

Abdominal PainAbnormal DreamsAccidental OverdoseAcute PsychosisAcute SinusitisAdjustment DisorderAdjustment Disorder With Depressed MoodAdjuvant TherapyAdvanced Sleep PhaseAdverse EventAffective DisorderAfrican TrypanosomiasisAggressionAgitationAlcoholism

Showing 15 of 473 indications

Eszopiclone brand names and reporting trend

Eszopiclone is sold under the brand name Eszopiclone.

Brand names

Eszopiclone55,860

Quarterly reports (20042025)

20052010201520202025

An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.

Taking eszopiclone with another medication?

Ask OpenClaim about your specific drug combination. Get a sourced report using FDA data, drug labels, and medical literature.