What does the Zyrtec label say for babies and toddlers under 2?

For the US Children’s Zyrtec Allergy syrup shown here, children under 2 need a doctor’s guidance. Searching by a baby’s month of age does not create a separate labeled amount. This page explains the bottle’s boundary; it does not supply an infant prescription.

In this guide

Match the product

Select a package to see its printed strength. Packaging can change; check your own label.

Children’s ZYRTEC Syrup, 1 mg / mL package

Enlarge label

Syrup · US label

Children’s ZYRTEC

Ingredient:: Cetirizine HCl
Printed strength:: 1 mg / mL

View dosage chart Manufacturer guidance

Six or seven months, one year, fifteen or eighteen months

A 6-month-old, 7-month-old, 10-month-old, 12-month-old, 15-month-old or 18-month-old is still under 2 years. The same under-2 instruction applies to this OTC syrup. It is not a month-by-month dosing schedule.

Why another cetirizine chart may look different

Check which product, country and clinical context the other chart describes. A clinician’s instructions and this specific OTC package are different sources of guidance. Do not copy a number from another chart or use the 2-year-old row early. If cetirizine has been prescribed, ask the prescriber or pharmacist to confirm the exact concentration, amount, frequency and duration.

When a bottle and chart disagree

Bring the exact bottle to the conversation

This page shows the 1 mg/mL syrup, also labeled 5 mg/5 mL. Chewables and Dissolve Tabs have their own labels. Have the package and measuring device available; a brand name or weight alone does not resolve which directions apply.