Hydroxyzine vs Benzodiazepines for Anxiety: Risks, Evidence and Who Should Avoid Each

Hydroxyzine and benzodiazepines are both used for short-term relief of anxiety, but they carry very different risks. Benzodiazepines such as alprazolam (Xanax) are controlled substances with an FDA boxed warning for abuse, misuse, addiction, physical dependence and withdrawal reactions; hydroxyzine is an antihistamine that is not habit-forming in the same way but is contraindicated in people with a prolonged QT interval and in early pregnancy. Neither is the usual first choice for long-term treatment of an anxiety disorder.

If you are comparing the two, the deciding factors tend to be your heart rhythm, your age, your history with alcohol or other substances, what other sedating medicines you take, and whether you need something for occasional spikes or for daily symptoms. Any change, especially reducing or stopping a benzodiazepine, should be planned with your prescriber.

Hydroxyzine and benzodiazepines at a glance

The benzodiazepine boxed warning in plain terms

In September 2020, the FDA required the boxed warning for every benzodiazepine to be updated to address abuse, misuse, addiction, physical dependence and withdrawal reactions. The agency noted that about 92 million benzodiazepine prescriptions were dispensed from US outpatient pharmacies in 2019, with alprazolam the most common. It also estimated that 5.4 million people aged 12 and older in the US misused or abused benzodiazepines in the prior year in 2018.

The alprazolam label spells out what this means for patients:

• Combining benzodiazepines with opioids may cause profound sedation, slowed breathing, coma and death, so the combination is reserved for people without adequate alternatives.
• Even taking benzodiazepines as prescribed may put people at risk of misuse, and misuse commonly involves alcohol or other drugs.
• Continued use can cause clinically significant physical dependence, and the risk grows with higher daily doses and longer treatment.
• Stopping suddenly or cutting the dose quickly after continued use can cause acute withdrawal reactions, which can be life-threatening.

The FDA added that some people have withdrawal symptoms lasting many months, and that protracted withdrawal symptoms may last from weeks to as long as 12 months. For that reason it tells clinicians to use a gradual, patient-specific taper rather than a single standard schedule. The practice's page on tapering psychiatric medications safely explains how that process is usually supported.

If you are thinking about suicide or are in crisis, call or text 988 (the 988 Suicide & Crisis Lifeline) or go to the nearest emergency room.

Hydroxyzine's own risks

Hydroxyzine is often described as the "safer" option, and on dependence that is broadly fair, but it is not risk-free. Its label contraindicates it in anyone with a prolonged QT interval, and post-marketing reports include QT prolongation and torsade de pointes, a dangerous heart rhythm. Most of those reports involved people with other risk factors, such as heart disease, electrolyte imbalances or other QT-prolonging drugs.

The label asks for caution with a long list of medicines that can prolong the QT interval, including certain antipsychotics such as quetiapine and ziprasidone, certain antidepressants such as citalopram and fluoxetine, some antibiotics, methadone and ondansetron. That overlap with common psychiatric medicines is one reason your prescriber may want a full medication list, and sometimes an ECG, before prescribing it. See how your psychiatrist and primary care doctor should work together for how heart checks are often shared.

Other points from the label:

• Drowsiness is usually transitory and may fade within a few days or with a lower dose, but you are warned not to drive or operate dangerous machinery until you know how it affects you.
• It strengthens the effect of other central nervous system depressants, such as opioids, other sedatives and alcohol.
• Dry mouth, an anticholinergic effect, can occur.
• It should not be given to nursing mothers.
• Rare skin reactions, including acute generalized exanthematous pustulosis, have been reported.

How well each one works

A Cochrane review of five trials with 884 participants found some evidence that hydroxyzine is more effective than placebo for GAD, and roughly comparable to benzodiazepines and buspirone in the small number of comparisons available. Hydroxyzine was linked to more sleepiness than the active comparators, though that difference was not statistically clear, and because the studies were few, small and at high risk of bias, the reviewers concluded it could not be recommended as a reliable first-line treatment for GAD.

Benzodiazepines relieve anxiety, but guidelines limit their role. NICE advises against offering a benzodiazepine for GAD except as a short-term measure during crises, and says benzodiazepines are associated with a less good outcome in the long term and should not be prescribed for panic disorder. The same guideline says sedating antihistamines, the group hydroxyzine belongs to, should not be prescribed for panic disorder either.

For ongoing GAD, NICE recommends an SSRI as the first medication, with an SNRI or another SSRI next, alongside or instead of CBT based on preference. The comparison of those daily options is in buspirone vs SSRIs for anxiety, and the broader menu is in anxiety treatment options compared.

Older adults: why both are on the Beers list

The American Geriatrics Society's 2023 Beers Criteria, the standard US list of medicines older adults should usually avoid, flags both drugs. For benzodiazepines, it notes that older adults are more sensitive to them and that all benzodiazepines increase the risk of cognitive impairment, delirium, falls, fractures and motor vehicle crashes; the recommendation is to avoid them, with exceptions that include seizure disorders, alcohol or benzodiazepine withdrawal and severe generalized anxiety disorder. For hydroxyzine, it lists first-generation antihistamines as highly anticholinergic, with risks of confusion, constipation and other effects, and links cumulative anticholinergic exposure to falls, delirium and dementia; the recommendation is again to avoid.

The alprazolam label adds that older patients reach higher blood levels on the same dose and recommends a lower dose. The hydroxyzine label notes that sedating drugs may cause confusion and oversedation in the elderly and advises starting low. For families weighing these issues for a parent, see psychiatric care for an aging parent.

Who each option tends to suit, and who should avoid it

"As needed" use

Both drugs are often prescribed for use only when anxiety spikes, rather than every day. That pattern can limit total exposure, but it has trade-offs. With a benzodiazepine, intermittent use can still become frequent use, and the label's warning about physical dependence applies to continued use, with risk rising at higher daily doses and longer treatment. With hydroxyzine, the drowsiness that helps at night can be a problem before a work meeting or a drive. Ask your prescriber how often "as needed" is too often for your plan, and what you should do if you find yourself reaching for it daily.

As-needed medicine works best alongside a daily strategy, whether that is CBT, an SSRI or SNRI, or both. Skills such as paced breathing can also cut down how often you need a pill; the practice's guide to breathing techniques for anxiety is a practical start.

What a careful prescriber checks first

Before prescribing either medicine, a thorough prescriber usually reviews the following. You can speed this up by bringing a complete list of everything you take.

Using either one for sleep

Hydroxyzine's drowsiness leads some people to use it as a sleep aid, but that is not one of its labeled uses, and the Beers Criteria note that tolerance develops when first-generation antihistamines are used as hypnotics. Benzodiazepines used for sleep carry the same boxed warning as those used for anxiety. If sleep is the real problem, the better starting point is usually a sleep-specific plan; see insomnia treatment options compared and sleep medications compared.

Other short-term options worth asking about

• Buspirone is a daily, non-controlled anxiety medicine, but it is not suited to as-needed use and does not treat benzodiazepine withdrawal.
• For anxiety tied to a specific performance, such as a talk or audition, some prescribers discuss propranolol off-label; see propranolol for performance anxiety.
• For daily anxiety, an SSRI or SNRI and CBT remain the core treatments in guidelines, with short-term medicines used, if at all, as a bridge.

If you already take a benzodiazepine

• Do not stop suddenly or cut the dose sharply on your own; withdrawal reactions can be serious.
• Ask about a written, gradual taper if you and your prescriber decide to reduce it; the FDA says there is no one-size-fits-all schedule.
• Tell every prescriber, including dentists and surgeons, that you take it, especially before any opioid is prescribed.
• Avoid alcohol and do not combine it with other sedatives unless your prescriber has approved the combination.
• Expect that switching to buspirone will not by itself prevent withdrawal, because buspirone does not share cross-tolerance with benzodiazepines.

For more on how sedating medicines interact with drinking, see psychiatric medications and alcohol.

What the evidence does not tell you

• Head-to-head trials of hydroxyzine against benzodiazepines are few and small, so "equivalent" in the Cochrane review is a weak conclusion.
• There is little systematic evidence on hydroxyzine beyond 4 months.
• Population statistics on benzodiazepine misuse do not predict your personal risk; your history and dose pattern matter more.

Questions to ask your prescriber

• Is this meant as a short bridge, an as-needed backup, or a daily treatment, and what is the long-term plan?
• Do I need an ECG or electrolyte check before hydroxyzine, given my other medicines?
• How many doses a week would be a signal to revisit the plan?
• What daily treatment, medication or therapy, are we building toward?
• If I want to stop my benzodiazepine, what would a gradual taper look like for me?

How this practice approaches short-term anxiety medication

Ongoing care at the practice includes psychiatric evaluation and medication management alongside psychotherapy, including CBT and DBT, and nutrition and lifestyle psychiatry. Because the team includes prescribers and psychotherapists, a short-term medication can be planned together with skills-based treatment. You can read about medication management and anxiety care at the practice, and individual care starts with the Patient Interest Form. More decision guides are in Choosing Psychiatric Care.

Frequently asked questions

Is hydroxyzine addictive?

Hydroxyzine is not a controlled substance and is not associated with the dependence and withdrawal risks in the benzodiazepine boxed warning. It does cause drowsiness and adds to the effect of alcohol and other sedatives, so it still needs to be used as prescribed.

Is hydroxyzine as strong as Xanax?

In the small, older trials reviewed by Cochrane, hydroxyzine performed roughly like benzodiazepines for GAD, but the evidence was at high risk of bias. The risks differ more clearly than the benefits.

Can I take hydroxyzine with my SSRI?

Sometimes, but check first. Some SSRIs, including citalopram and fluoxetine, are on the hydroxyzine label's list of drugs that can prolong the QT interval, so your prescriber may review your heart risk before combining them.

Why won't my doctor prescribe a benzodiazepine for my panic attacks?

Guidelines such as NICE's say benzodiazepines are linked to poorer long-term outcomes in panic disorder and recommend antidepressants and CBT instead. A prescriber may still use one briefly in specific situations, but it is rarely the long-term plan.

How long does benzodiazepine withdrawal last?

It varies. The FDA says some people have withdrawal symptoms lasting many months, and protracted symptoms can last from weeks to as long as 12 months, which is why a gradual taper is recommended.

Is hydroxyzine safe while breastfeeding?

The label says hydroxyzine should not be given to nursing mothers. Talk with your prescriber about alternatives before starting or stopping any medication while breastfeeding.

Sources

1. FDA requiring Boxed Warning updated to improve safe use of benzodiazepine drug class. U.S. Food and Drug Administration (Drug Safety Communication), 2020. fda.gov
2. XANAX (alprazolam) prescribing information. DailyMed / U.S. FDA label (Pfizer/Upjohn), 2023. dailymed.nlm.nih.gov
3. Hydroxyzine hydrochloride tablets prescribing information. DailyMed / U.S. FDA label (RemedyRepack), 2026. dailymed.nlm.nih.gov
4. American Geriatrics Society 2023 updated AGS Beers Criteria for potentially inappropriate medication use in older adults. Journal of the American Geriatrics Society (PMC12478568), 2023. pmc.ncbi.nlm.nih.gov
5. Hydroxyzine for generalised anxiety disorder. Cochrane Database of Systematic Reviews (PubMed 21154375), 2010. pubmed.ncbi.nlm.nih.gov
6. Generalised anxiety disorder and panic disorder in adults: management (CG113), Recommendations. National Institute for Health and Care Excellence (NICE), 2011, updated 2020. nice.org.uk
7. Buspirone hydrochloride tablets prescribing information. DailyMed / U.S. FDA label (Advagen Pharma), 2026. dailymed.nlm.nih.gov

Educational information, not medical, tax or legal advice. Decisions about diagnosis, medication and treatment belong with a clinician who knows your history.