Lunesta vs Celexa: side-by-side comparison
Lunesta (Sleep Aids and Hypnotics) and Celexa (Anti-Depressants) belong to different therapeutic classes and are rarely interchangeable. This page compares the medications' purposes, mechanisms and the situations where each is used.
| Property | Lunesta | Celexa |
|---|---|---|
| Active ingredient | Eszopiclone | Citalopram |
| Manufacturer | Sunovion | Forest Laboratories / AbbVie |
| Class | Sleep Aids and Hypnotics | Anti-Depressants |
| Strengths | 1mg, 2mg, 3mg | 10mg, 20mg, 40mg |
| Forms | tablet | tablet |
What's the same
Lunesta and Celexa are used in very different patients, and the points in common are limited. The main shared element is that both meet regulatory standards for efficacy and safety and benefit from pharmacist oversight.
Key differences
Lunesta belongs to Sleep Aids and Hypnotics while Celexa belongs to Anti-Depressants. Indications, mechanisms and target populations differ. The comparison is most useful when a clinician has mentioned both medications and the patient wants to understand where each fits.
Mechanism and action
Lunesta: Eszopiclone is a positive allosteric modulator of the GABA-A receptor at a site close to the benzodiazepine binding site. Celexa: Citalopram selectively inhibits the serotonin reuptake transporter, increasing synaptic serotonin availability with limited affinity for noradrenaline transporters or other receptors.
When Lunesta is preferred
Lunesta is approved in adults for the treatment of insomnia, including difficulty falling asleep and difficulty maintaining sleep.
When Celexa is preferred
Celexa is approved for major depressive disorder.
Frequently asked questions
Is Lunesta or Celexa better? ▾
Lunesta and Celexa are not interchangeable — they treat different conditions. Asking which is "better" is meaningful only when a clinician has weighed both for the same specific clinical scenario.
Can I switch from Lunesta to Celexa? ▾
Switching between Lunesta and Celexa is rarely an appropriate decision since they belong to different classes and treat different conditions. The real question is usually whether the diagnosis calls for one medication or the other — which the prescriber resolves.
Do Lunesta and Celexa have the same side effects? ▾
No — they belong to different classes and have distinct side-effect profiles. Each medication has its own prescribing information.
More Lunesta comparisons
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.