Skip to main content

ZYRTEC® Dosage Guide For Adult and Children's Cetirizine HCl Products

Whether you need to know ZYRTEC® dosages for adults or children, check out our dosing charts and FAQs for the ZYRTEC® family of products, to find all the information you need.

When taking any medication, it’s important to take the recommended dosage. If you’re in doubt, follow the instructions on the product packaging or our dosage chart below.

ZYRTEC® Dosage Guide for Adult and Children's Cetirizine HCl Products

Filter by:

Product pack shot of Children's ZYRTEC® Dye-Free Grape Allergy Relief Syrup
Use product only as directed

Under 2 Ask a doctor

2 to under 6 years 2.5 mL once daily. If needed, dose can be increased to a maximum of 5mL once daily or 2.5 mL every 12 hours

Do not give more than 5 mL in 24 hours

6+ years 5 mL or 10 mL once daily depending on severity of symptoms.

Do not give more than 10 ml in 24 hours

Adults 65 years and over 5 mL once daily; do not take more than 5 mL in 24 hours.

Consumers with liver or kidney disease Ask a doctor.

Product pack shot of Children's ZYRTEC® Allergy Relief Dissolve Tabs
Use product only as directed

Under 2 Ask a doctor

6+ years One 10 mg tablet once daily; do not give more than 10 mg tablet in 24 hours. A 5 mg product may be appropriate for less severe symptoms.

Adults 65 years and over Ask a doctor.

Consumers with liver or kidney disease Ask a doctor.

Product pack shot of ZYRTEC® Dye-Free Grape Chewable Allergy Relief Tablets for Children ages 2+
Use product only as directed

Under 2 Ask a doctor

2 to under 6 years 2.5 mL once daily. If needed, dose can be increased to a maximum of 5mL once daily or 2.5 mL every 12 hours

Do not give more than 5 mL in 24 hours

6+ years 5 mL or 10 mL once daily depending on severity of symptoms.

Do not give more than 10 ml in 24 hours

Adults 65 years and over Chew and swallow 2 tablets (5 mg) once daily; do not take more than 2 tablets (5 mg) in 24 hours.

Consumers with liver or kidney disease Ask a doctor.

Product pack shot of ZYRTEC® Dye-Free Grape Chewable Allergy Relief Tablets for Children ages 6+
Use product only as directed

Under 6 years Ask a doctor.

6+ years Chew and swallow 1 tablet (10 mg) once daily; do not give more than 1 tablet (10 mg) in 24 hours. A 5 mg product may be appropriate for less severe symptoms.

Adults 65 years and over Ask a doctor.

Consumers with liver or kidney disease Ask a doctor.

Product pack shot of ZYRTEC® Allergy Relief Tablets with Cetirizine HCl
Use product only as directed

Children under 6 years of age Ask a doctor

Adults under 65 and children 6 years and older One 10 mg tablet once daily; do not take more than one 10 mg tablet in 24 hours. A 5 mg product may be appropriate for less severe symptoms.

Adults 65 years and over Ask a doctor.

Consumers with liver or kidney disease Ask a doctor.

Product pack shot of ZYRTEC® Allergy Relief Liquid Gels
Use product only as directed

Children under 6 years of age Ask a doctor.

Adults under 65 and children 6 years and older One 10 mg tablet once daily; do not take more than one 10 mg tablet in 24 hours. A 5 mg product may be appropriate for less severe symptoms.

Adults 65 years and over Ask a doctor.

Consumers with liver or kidney disease Ask a doctor.

Product pack shot of ZYRTEC®-D Allergy Relief Tablets with Decongestant and Cetirizine HCl
Use product only as directed

Adults under 65 and children 12 years and older One 10 mg capsule once daily; do not take more than one 10 mg capsule in 24 hours.

Adults 65 years and over Ask a doctor.

Adults with liver or kidney disease Ask a doctor.

Children under 12 years of age Ask a doctor.

Product pack shot of ZYRTEC® Allergy Relief Dye-Free Chewable Tablets
Use product only as directed

Adults and children 6 years and older Chew and swallow 2 tablet (10 mg) once daily; do not take more than 1 tablet (10 mg) in 24 hours. A 5 mg product may be appropriate for less severe symptoms.

Adults 65 years and over Ask a doctor.

Adults with liver or kidney disease Ask a doctor.

Children under 6 years of age Ask a doctor.

New! Adult Zyrtec oral dissolve tabs, used to treat both indoor and outdoor allergies
Use product only as directed

Children under 6 years of age Ask a doctor

Adults under 65 and children 6 years and older One 10 mg tablet once daily; do not take more than one 10 mg tablet in 24 hours. A 5 mg product may be appropriate for less severe symptoms.

Adults 65 years and over Ask a doctor.

Consumers with liver or kidney disease Ask a doctor.

Where to Buy

Sign Up for ZYRTEC® Emails!

Receive exclusive offers, coupons, product updates and information on your allergies so you can Zeize the Day™!