Atarax is a brand name for hydroxyzine. It’s a prescription antihistamine with sedative and anti-anxiety effects. There are two related forms:
- Hydroxyzine hydrochloride (marketed as Atarax)
- Hydroxyzine pamoate (marketed as Vistaril)
What it’s used for
- Itching from allergic conditions (hives, rashes)
- Anxiety and tension
- Sedation before or after surgery or medical procedures
- Nausea/vomiting in some settings (less common)
How it works
- Blocks histamine H1 receptors (antihistamine), which helps with itching and allergy symptoms
- Has calming/sedative effects in the central nervous system, which can reduce anxiety
Common side effects
- Drowsiness or sleepiness
- Dry mouth, dizziness
- Headache, blurred vision
- Constipation or urinary retention (more likely with higher anticholinergic effects)
Dosing (very general; follow your doctor’s instructions)
- Adult doses vary by indication: several times daily, often 25–50 mg per dose; sometimes up to 100 mg per dose
- Typical daily maximum is around 400 mg in many uses, but your exact max depends on formulation and medical condition
- For elderly or those sensitive to sedation, starting at a lower dose (e.g., 25 mg at bedtime) is common
Important cautions
- Do not drink alcohol or take other CNS depressants with hydroxyzine (increases sedation)
- Can cause drowsiness; avoid driving or operating heavy machinery until you know how it affects you
- Not recommended in pregnancy unless advised by a clinician; may pass into breast milk
- People with glaucoma, urinary retention, peptic ulcers, or certain heart or liver conditions should use with caution
- Avoid in people with a known allergy to hydroxyzine or related drugs
Drug interactions to watch for
- Other sedatives, benzodiazepines, opioids, or alcohol (increases sedation)
- Some medicines that affect heart rhythm (QT interval) or anticholinergic drugs
If you want, tell me:
- What condition you’re using it for (itching, anxiety, premedication, etc.)
- Your age and any other meds you’re taking
- Any pregnancy/breastfeeding status or medical conditions
I can tailor a brief, practical summary (dosing ranges, what to avoid, and when to call a clinician) for your situation. If you have symptoms that are severe or concerning, contact a healthcare professional right away.