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Two medicines, side by side

Eszopiclone vs temazepam

Eszopiclone and temazepam are both labeled for insomnia. Drugs@FDA records approvals of eszopiclone since 2004 and of temazepam since 1981. Pharmacies paid $0.0993 per eszopiclone 1 mg tablet and $0.0767 per temazepam 15 mg capsule (NADAC, October 7, 2026); the strengths differ, so the two prices are not like for like.

Check it at the source: the eszopiclone FDA label on DailyMed (effective January 30, 2026); the temazepam FDA label on DailyMed (effective June 9, 2026).

Highlights of the eszopiclone record

Eszopiclone (Lunesta) · label of January 30, 2026

Boxed warning

COMPLEX SLEEP BEHAVIORS Complex sleep behaviors including sleep-walking, sleep-driving, and engaging in other activities while not fully awake may occur following use of eszopiclone tablets. Some of these events may result in serious injuries, including death. Discontinue eszopiclone tablets immediately if a patient experiences a complex sleep behavior [see Contraindications ( 4 ) and Warnings and Precautions ( 5.1 )].

Used for

From the label: indications

Eszopiclone tablets are indicated for the treatment of insomnia. In controlled outpatient and sleep laboratory studies, eszopiclone tablets administered at bedtime decreased sleep latency and improved sleep maintenance. The clinical trials performed in support of efficacy were up to 6 months in duration. […]

On the market

Earliest approval on file
December 15, 2004
Generic labelers
27 labelers
Pharmacy cost
$0.0993 per tablet

Supply and safety

Shortage
No current entry
Recalls
2

Highlights of the temazepam record

Temazepam (Restoril) · label of June 9, 2026

Boxed warning

RISKS FROM CONCOMITANT USE WITH OPIOIDS; ABUSE, MISUSE, AND ADDICTION; and DEPENDENCE AND WITHDRAWAL REACTIONS Concomitant use of benzodiazepines and opioids may result in profound sedation, respiratory depression, coma, and death. Reserve concomitant prescribing of these drugs in patients for whom alternative treatment options are inadequate. Limit dosages and durations to the minimum required.

Used for

From the label: indications

Restoril ® (temazepam) is indicated for the short-term treatment of insomnia (generally 7 to 10 days). For patients with short-term insomnia, instructions in the prescription should indicate that Restoril ® (temazepam) should be used for short periods of time (7 to 10 days). […]

On the market

Earliest approval on file
February 27, 1981
Generic labelers
20 labelers
Pharmacy cost
$0.0767 per capsule

Supply and safety

Shortage
No current entry
Recalls
1

Source: FDA drug labels via openFDA (Eszopiclone label of January 30, 2026, Temazepam label of June 9, 2026); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do eszopiclone and temazepam differ on the record?

Half-life, in each label's words: Eszopiclone, “Eszopiclone is rapidly absorbed, with a time to peak concentration (t max ) of approximately 1 hour and a …”; Temazepam, “The blood level decline of the parent drug was biphasic with the short half-life ranging from 0.4 to 0.6 hours and the …”

Both labels carry a boxed warning; the records quote them.

Generics: eszopiclone since 2011; temazepam since 1986 (Drugs@FDA).

EszopicloneTemazepam
Labeled forInsomniaInsomnia
Pharmacologic classn/aBenzodiazepine
How it works (label)The mechanism of action of eszopiclone as a hypnotic is unclear; however, its effect could be related to its interaction with GABA-receptor complexes at binding domains located close to or allosterically coupled to benzodiazepine receptors.n/a
Half-life (label)Eszopiclone is rapidly absorbed, with a time to peak concentration (t max ) of approximately 1 hour and a terminal-phase elimination half-life (t 1/2 ) of approximately 6 hours.The blood level decline of the parent drug was biphasic with the short half-life ranging from 0.4 to 0.6 hours and the terminal half-life from 3.5 to 18.4 hours (mean 8.8 hours), depending on the study population and …
Earliest approval on file (Drugs@FDA)December 15, 2004February 27, 1981
First generic approvedMay 23, 2011July 10, 1986
Generic labelers (NDC)27 labelers20 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.0993 per tablet (Eszopiclone 1 mg tablet)$0.0767 per capsule (Temazepam 15 mg capsule)
12-month price change-28%+0.5%
Boxed warningYesYes
Shortage nowNo current entryNo current entry
Recalls recorded21
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)25,31337,475
DEA scheduleCIVCIV

Source: Drugs@FDA, FDA NDC Directory, CMS NADAC of October 7, 2026, FDA shortages and recalls, FAERS via openFDA (FDA files October 8, 2026)

What do the labels say about using others of their kind?

Eszopiclone label, warnings and precautions

The risk of next-day psychomotor impairment is increased if eszopiclone is taken with less than a full night of sleep remaining (7 to 8 hours); if higher than the recommended dose is taken; if coadministered with other CNS depressants; or coadministered with other drugs that increase the blood levels of eszopiclone [see Dosage and Administration ( 2.3 ) and Clinical Studies ( 14.3 )].

Temazepam label, drug interactions

The benzodiazepines, including temazepam, produce additive CNS-depressant effects when co-administered with other CNS depressants such as alcohol, barbiturates, antipsychotics, sedative/hypnotics, anxiolytics, antidepressants, narcotic analgesics, sedative antihistamines, anticonvulsants, and anesthetics.

Source: FDA drug labels via openFDA

What next?

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