Updated: March 26, 2026

What Is Vistaril? Uses, Dosage, and What You Need to Know in 2026

Author

Peter Daggett

Summarize with AI

What Is Vistaril?
What Is Vistaril Used For?
Is Vistaril a Controlled Substance?
Dosage: How Much Vistaril Will I Take?
Available Forms and Strengths
How to Take Vistaril
Who Should NOT Take Vistaril?

A complete patient guide to Vistaril (hydroxyzine): what it is, what it treats, how to take it, and everything else you need to know before starting in 2026.

Vistaril is one of the most commonly prescribed non-controlled medications for anxiety and allergic itching in the United States. If you've just been prescribed it — or are curious about whether it might be right for you — this guide covers everything you need to know.

What Is Vistaril?

Vistaril is the brand name for hydroxyzine pamoate, a first-generation antihistamine that was originally developed in the 1950s. It belongs to the piperazine class of antihistamines and has three distinct effects: it reduces histamine activity (antihistamine), it has a calming effect on the brain (anxiolytic/sedative), and it has anticholinergic (drying) properties.

Hydroxyzine is available in two main salt forms: hydroxyzine pamoate (Vistaril) and hydroxyzine hydrochloride (the former Atarax, now only available as generics). Both deliver the same active drug and have similar clinical effects.

What Is Vistaril Used For?

Vistaril has several FDA-approved uses:

Anxiety and tension: Hydroxyzine is FDA-approved for symptomatic relief of anxiety and tension associated with psychoneurosis and as an adjunct in organic disease states where anxiety is present. It's often used as a short-term or as-needed anxiolytic.

Allergic skin conditions: FDA-approved for the management of pruritus (itching) due to allergic conditions such as chronic urticaria (hives), atopic dermatitis, and contact dermatoses.

Preoperative and postoperative sedation: Used before and after surgery to reduce anxiety and provide mild sedation as an adjunct to anesthesia.

Nausea and vomiting: Hydroxyzine has antiemetic properties and may be used for nausea in certain clinical settings.

Off-label uses include insomnia, alcohol withdrawal management, and as an adjunct for pain control.

Is Vistaril a Controlled Substance?

No. Hydroxyzine (Vistaril) is not classified as a controlled substance by the DEA. It is a prescription-only medication, but it does not have the same prescribing restrictions as benzodiazepines (Xanax, Ativan, Klonopin), which are Schedule IV controlled substances. This is one reason many providers prefer hydroxyzine for patients with anxiety who have a history of substance use or for whom they want to avoid controlled substance prescribing.

Dosage: How Much Vistaril Will I Take?

Dosing varies by condition:

Anxiety in adults: 50-100 mg four times daily (up to 400 mg/day total). Often used as-needed at 25-50 mg.

Allergic itching in adults: 25 mg three to four times daily.

Preoperative sedation in adults: 50-100 mg.

Children (anxiety/pruritus, over 6 years): 50-100 mg/day in divided doses.

Children (under 6 years): 50 mg/day in divided doses.

Always follow the dose your doctor prescribed. Do not take more or less than directed, and do not use it longer than recommended (effectiveness for anxiety beyond 4 months has not been systematically studied).

Available Forms and Strengths

Hydroxyzine pamoate capsules (Vistaril): 25 mg, 50 mg

Hydroxyzine pamoate oral suspension: 25 mg/5 mL

Hydroxyzine HCl tablets: 10 mg, 25 mg, 50 mg

Hydroxyzine HCl oral syrup: 10 mg/5 mL

How to Take Vistaril

Take by mouth as directed, 3-4 times daily or as needed

Can be taken with or without food

If using the oral suspension, shake well before measuring the dose

Hydroxyzine typically begins working within 15-30 minutes

Avoid alcohol — it significantly increases sedation

Do not drive until you know how it affects you

Who Should NOT Take Vistaril?

Pregnant patients (especially first and second trimester)

Patients with documented allergy to hydroxyzine, cetirizine, or levocetirizine

Patients with a prolonged QT interval (heart rhythm issue)

Elderly patients should use with caution — may experience greater sedation and confusion

For a full breakdown of side effects and warnings, see our guide: Vistaril Side Effects: What to Expect and When to Call Your Doctor.

Frequently Asked Questions

Vistaril (hydroxyzine) is FDA-approved to treat anxiety and tension, relieve itching from allergic skin conditions like hives and contact dermatitis, and as a sedative before and after surgery. It is also used off-label for insomnia and nausea.

No. Vistaril (hydroxyzine) is an antihistamine, not a benzodiazepine. It is not a controlled substance and does not carry the dependence risk associated with benzodiazepines like Xanax (alprazolam) or Ativan (lorazepam). It works differently — by blocking histamine and suppressing subcortical CNS activity.

Hydroxyzine is absorbed rapidly from the gastrointestinal tract. Clinical effects — including the calming, sedating effect — are typically noticeable within 15 to 30 minutes of an oral dose. Effects may last 4-6 hours, though the half-life in adults is approximately 20 hours.

The effectiveness of hydroxyzine as an anxiolytic for more than 4 months has not been systematically studied. It is generally considered a short-term or as-needed medication for anxiety, not a long-term daily treatment like SSRIs. If you need long-term anxiety management, discuss options like SSRIs or SNRIs with your doctor.

Vistaril is hydroxyzine pamoate (capsules and oral suspension), while Atarax was hydroxyzine hydrochloride (tablets and syrup). Both deliver the same active drug — hydroxyzine — and are clinically equivalent. Atarax brand has been discontinued; only generic hydroxyzine HCl is available. Pfizer's Vistaril is also no longer marketed; only generics remain.

Medfinder Editorial Standards

Medfinder's mission is to ensure every patient gets access to the medications they need. We are committed to providing trustworthy, evidence-based information to help you make informed health decisions.

Read our editorial standards