Eszopiclone vs Lorazepam: side-by-side comparison
Eszopiclone (Non-benzodiazepine hypnotic (Z-drug)) and Lorazepam (Benzodiazepine) belong to different therapeutic classes and are rarely substitutes for each other. The comparison is useful when a single patient is weighing both options for adjacent or overlapping needs.
| Property | Eszopiclone | Lorazepam |
|---|---|---|
| Therapeutic class | Non-benzodiazepine hypnotic (Z-drug) | Benzodiazepine |
| CAS | 138729-47-2 | 846-49-1 |
| ATC | N05CF04 | N05BA06 |
| Molecular weight | 388.81 g/mol | 321.16 g/mol |
| Brands with this active ingredient | 1 | 1 |
What they share
Eszopiclone and Lorazepam share the common regulatory framework for prescription active ingredients, bioequivalence standards for generics, and pharmacist oversight. Beyond that, points in common are limited.
Key differences
Eszopiclone acts by a different mechanism than Lorazepam, with indications that barely overlap. Comparing the two is useful when a clinician has mentioned both in the same context or the patient wants to understand why one was prescribed instead of the other.
Mechanisms compared
Eszopiclone: Eszopiclone is a positive allosteric modulator of the GABA-A receptor at a site close to the benzodiazepine binding site. Lorazepam: Lorazepam binds the benzodiazepine site of the GABA-A receptor and allosterically enhances the action of the inhibitory neurotransmitter GABA.
Indications compared
Eszopiclone: Eszopiclone is approved in adults for the treatment of insomnia, including difficulty falling asleep and difficulty maintaining sleep. Lorazepam: Lorazepam is approved in adults for the short-term management of anxiety disorders and anxiety-related insomnia, for the acute treatment of generalised tonic-clonic seizures and status epilepticus (parenteral form), and…
Safety profile
Eszopiclone: Common adverse effects include unpleasant taste, headache, dry mouth, drowsiness and dizziness. Lorazepam: Common adverse effects include sedation, drowsiness, dizziness, ataxia and memory impairment.
Frequently asked questions
Is Eszopiclone better than Lorazepam? ▾
Eszopiclone and Lorazepam are not "better or worse" — they treat different things. The sensible question is which fits your specific need.
Can Eszopiclone and Lorazepam be combined? ▾
Whether they can be combined depends on the indications and the interaction profile of each. If both are in a single prescription, the prescriber has weighed it; in self-medication they should never be combined.
Do they have the same side-effect profile? ▾
No — they belong to different classes and have distinct side-effect profiles. Each has its own prescribing information.
Products with Eszopiclone
Products with Lorazepam
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.