About cetrizine
Second-generation antihistamine
Used for
- Relief of allergy symptoms, such as sneezing, runny nose, and itchy eyes
- Relief of hives and itching
Usual adult dose
Usually 10 mg once daily.
Usual dose in children
Usually 5 mg once daily for ages 2–5; 5–10 mg once daily for ages 6 and older, depending on age and product directions.
Common side effects
- Sleepiness or tiredness
- Dry mouth
- Headache
- Dizziness
Important warnings
- May cause drowsiness; avoid driving if affected.
- Kidney disease may require a lower dose.
- Do not take more than directed; overdose can cause marked sleepiness.
Pregnancy
Generally considered low risk when needed; discuss use with a healthcare professional.
Breastfeeding
Small amounts may enter breast milk; occasional use is generally considered compatible.
Interactions
- Alcohol and sedatives may increase drowsiness.
- Theophylline may slightly reduce cetirizine clearance.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.