Dayvigo vs. Hydroxyzine

See how Dayvigo and Hydroxyzine compare on approved uses, dosing, side effects, and cost.

Key Takeaways

  • Dayvigo is FDA-approved specifically for insomnia, while hydroxyzine is approved for anxiety and itching and used off-label for sleep.

  • Dayvigo is a single tablet taken once nightly, while hydroxyzine's FDA-approved anxiety dosing calls for up to four doses a day.

  • Dayvigo costs more per month and is a controlled substance, while generic hydroxyzine is inexpensive and has no abuse potential.

Dayvigo vs. Hydroxyzine Drug Summary

Dayvigo

Dayvigo (lemborexant) is a dual orexin receptor antagonist FDA-approved to treat insomnia in adults who have trouble falling asleep, staying asleep, or both. It comes as a 5 mg or 10 mg tablet taken once nightly, right before bed.

Hydroxyzine

Hydroxyzine is an older antihistamine FDA-approved for anxiety and tension and for itching from allergic skin conditions, taken as tablets or capsules multiple times a day. It's sometimes used off-label at bedtime as a sedating sleep aid, though it isn't FDA-approved for insomnia.

Dayvigo vs. Hydroxyzine Side Effects

Dayvigo

Most common
Somnolence (up to 10%)
Headache (up to 6%)
Diarrhea (up to 3%)
Nasopharyngitis (up to 3%)

Hydroxyzine

Most common
Drowsiness (up to 28%)
Dry mouth (up to 14%)
Weight gain (up to 12%)
Trouble concentrating (up to 9%)

Dayvigo vs. Hydroxyzine Dosage

Dayvigo

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 5 mg once nightly At the start
Maximum dose 10 mg once nightly If needed
Dose changes 1 increase As tolerated

Hydroxyzine

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 50-100 mg At the start
Maximum dose 50-100 mg Same as starting
Dose changes None Fixed dose

Dayvigo vs. Hydroxyzine Indications

Dayvigo

Dayvigo is FDA-approved specifically for insomnia in adults, covering both trouble falling asleep and trouble staying asleep. It works by blocking orexin receptors that promote wakefulness, rather than boosting a calming brain chemical the way older sleep medicines do.

  • Difficulty falling asleep (sleep onset insomnia)

  • Difficulty staying asleep (sleep maintenance insomnia)

  • Approved for adults only, not children

  • Not approved for narcolepsy

Hydroxyzine

Hydroxyzine's FDA-approved uses are short-term relief of anxiety and tension, and control of itching from allergic skin conditions like hives or eczema. Doctors sometimes prescribe it off-label at bedtime for occasional insomnia, but this use isn't FDA-approved and hasn't been studied in dedicated insomnia trials.

  • Anxiety and tension linked to psychoneurosis (FDA-approved)

  • Itching from hives, eczema, or contact dermatitis (FDA-approved)

  • Sedation before or after surgery (FDA-approved)

  • Occasional sleeplessness (off-label, not FDA-approved)

Dayvigo vs. Hydroxyzine Pros and Cons

Dayvigo

Dayvigo targets the specific brain pathway that keeps you awake, and its 12-month trial data show effects hold up without rebound insomnia when stopped. As a newer brand-name drug with no generic yet, it typically costs more out of pocket and is classified as a controlled substance.

Pros

  • Purpose-built and FDA-approved for chronic insomnia

  • 12-month trial data show sustained effect without rebound insomnia

  • One tablet at bedtime, no daytime dosing needed

  • Non-GABA mechanism avoids anticholinergic side effects like dry mouth

Cons

  • Roughly $135 to $400 per month without insurance, no generic yet

  • Schedule IV controlled substance with dependence potential

  • Can cause complex sleep behaviors like sleepwalking or sleep-driving

  • Fewer years of real-world use than decades-old hydroxyzine

Hydroxyzine

Hydroxyzine has decades of use as a low-cost, non-addictive option, but it was never studied specifically as a sleep drug and its anxiety dosing calls for up to four doses a day. Its strong antihistamine effects mean more next-day grogginess and dry mouth for some people.

Pros

  • Roughly $10 to $40 per month without insurance, generic only

  • Not a controlled substance, no known abuse potential

  • Decades of clinical use across anxiety and allergy conditions

  • Also relieves itching if allergy symptoms overlap with sleep issues

Cons

  • Not FDA-approved for insomnia; sleep use is off-label

  • Approved anxiety dosing requires up to four doses a day

  • Strong anticholinergic effects like dry mouth and weight gain

  • No dedicated insomnia trials backing its sleep effectiveness

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