Sonata vs. Hydroxyzine

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

Key Takeaways

  • Sonata is FDA-approved specifically for short-term insomnia, while hydroxyzine's use for sleep is off-label since its FDA approval covers anxiety, itching, and procedural sedation.

  • Sonata is a Schedule IV controlled substance with a boxed warning for complex sleep behaviors, whereas hydroxyzine carries no abuse potential but brings its own anticholinergic side effects.

  • Sonata's very short half-life allows middle-of-the-night dosing if enough sleep time remains, while hydroxyzine's longer half-life can cause more next-day drowsiness.

Sonata vs. Hydroxyzine Drug Summary

Sonata

Sonata (zaleplon) is a nonbenzodiazepine sedative-hypnotic in the pyrazolopyrimidine class. It's FDA-approved for short-term treatment of insomnia in adults, taken as a single oral capsule right before bed or in the middle of the night if at least 4 hours of sleep time remain.

Hydroxyzine

Hydroxyzine is a first-generation antihistamine FDA-approved for short-term anxiety, itching from allergic skin reactions, and pre- or post-procedure sedation. It's taken orally, usually multiple times a day, and its sedating side effect leads some clinicians to prescribe it off-label at bedtime for sleep.

Sonata vs. Hydroxyzine Side Effects

Sonata

Most common
Headache (up to 28%)
Nausea (up to 7%)
Dizziness (up to 7%)
Somnolence (up to 5%)

Hydroxyzine

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

Sonata vs. Hydroxyzine Dosage

Sonata

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 5 mg once nightly At the start
Maximum dose 20 mg once nightly If needed
Dose changes 2 increases 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

Sonata vs. Hydroxyzine Indications

Sonata

Sonata is FDA-approved only for the short-term treatment of insomnia characterized by difficulty falling asleep. It hasn't been studied for use beyond several weeks, and prescribers are advised against long-term nightly use. It isn't approved for anyone under 18.

  • Short-term insomnia in adults

  • Difficulty falling asleep at night

  • Not approved for long-term nightly use

  • Not approved for anyone under 18

Hydroxyzine

Hydroxyzine is FDA-approved for short-term anxiety and tension, itching from allergic skin conditions, and sedation before or after procedures. It is not FDA-approved for insomnia, so using it as a sleep aid is considered off-label.

  • Short-term anxiety and tension

  • Itching from allergic skin conditions

  • Sedation before or after procedures

  • Insomnia — off-label use only

Sonata vs. Hydroxyzine Pros and Cons

Sonata

Sonata's very short half-life means it clears the body quickly, which supports its use for the middle of the night without much next-day carryover, and it's processed by an enzyme pathway that avoids most drug interactions. As a Schedule IV controlled substance with a boxed warning for complex sleep behaviors, it isn't meant for everyday long-term use.

Pros

  • Can be taken mid-night if 4+ hours of sleep remain

  • Fewer drug interactions (not metabolized by CYP enzymes)

  • Specifically studied and approved for insomnia

  • Lower next-day grogginess than many antihistamines

Cons

  • Boxed warning for complex sleep behaviors (sleepwalking, sleep-driving)

  • Schedule IV controlled substance with abuse potential

  • Contains tartrazine (FD&C Yellow No. 5), an allergen for some

  • Costs roughly $25 to $115 per month without insurance, before savings programs

Hydroxyzine

Hydroxyzine isn't a controlled substance, so it carries no abuse potential, and its antihistamine action doubles as treatment for itching and situational anxiety. Because it isn't FDA-approved for sleep, using it at bedtime relies on its sedating side effect rather than a studied insomnia indication, and its longer half-life can leave more residual grogginess the next morning.

Pros

  • Not a controlled substance, no abuse potential

  • Also treats itching and allergic skin reactions

  • Generic costs roughly $10 to $40 per month

  • Long track record of use since the 1950s

Cons

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

  • Anticholinergic effects like dry mouth and weight gain

  • Longer half-life can cause more next-day drowsiness

  • Dosed up to 4 times daily for its approved uses

Common Symptoms and Related Diseases You Can Explore

Explore a range of common symptoms the Doctronic Symptom Checker can help you understand.