Trusted, medically reviewed health information • Not a substitute for medical advice
Medically Verified MonographPrescription OnlyClass: Antihistamine, First Generation

Hydroxyzine

Generic Name: Hydroxyzine

Common Brand Names: Vistaril, Atarax
Dosage Form:Tablet, Capsule, Syrup
Route:Oral
Pregnancy Category:C
Last Reviewed:9/21/2026

Seek Urgent Medical Attention If:

You experience severe allergic reaction symptoms (swelling of the face, lips, tongue, or throat causing difficulty breathing), severe rash with skin peeling, sudden intense chest pain, or symptoms of overdose. Call emergency medical services immediately.

Uses & Medical Indications

Anxiety, pruritus, sedation before surgery

Medical Conditions Treated:

Anxiety, itching

Dosage & Administration Guidelines

Adult Dosage

25-100 mg up to 4 times a day

Pediatric Dosage

0.6 mg/kg/dose every 6 hours

Elderly / Geriatric Considerations

Start low (Beers criteria)

Maximum Dose Limit

400 mg/day

Renal Impairment:

Reduce dose by 50% in CrCl < 50

Hepatic Impairment:

Reduce dose

Side Effects & Safety Warnings

Common Side Effects

Dry mouth, drowsiness

Serious Adverse Reactions

QT prolongation

Contraindications:

Early pregnancy, prolonged QT interval

Important Warnings & Precautions:

CNS depression

Interactions (Drugs, Food & Alcohol)

Drug-Drug Interactions:

CNS depressants, QT prolonging drugs

Food & Dietary Interactions:

N/A

Alcohol Interaction Warning:

Avoid

Pregnancy & Breastfeeding Safety

Pregnancy Safety

Contraindicated in early pregnancy

Breastfeeding / Lactation

Not recommended

Patient Counseling & Practical Advice

How to Take:

May cause severe drowsiness

What to Do if You Miss a Dose:

Take as soon as remembered

Recommended Monitoring & Lab Tests:

Relief of symptoms, mental status

Trustworthy Sources & Medical Review

Content for Hydroxyzine was synthesized and fact-checked against standardized regulatory monographs, official pharmacopoeias, and national health authorities:

  • Central Drugs Standard Control Organization (CDSCO) — National List of Essential Medicines
  • World Health Organization (WHO) — Model List of Essential Medicines 23rd List
  • Indian Pharmacopoeia Commission (IPC) — Indian Pharmacopoeia Drug Monographs
  • National Health Service (NHS) — Medicines A to Z Clinical Guidelines
Reviewer Credentials: PharmD, Clinical PharmacologistLast Reviewed Date: 9/21/2026

The information provided on this website is for educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.