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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

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Use 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.

Children’s ZYRTEC® Dissolve Tabs
Use 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 sever symptoms.

Adults 65 years and over Ask a doctor.

Consumers with liver or kidney disease Ask a doctor.

Children’s Zyrtec Chewable Allergy Medicine for ages 2+ with 2.5 mg Active Ingredient Cetirizine HCl
Use 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.

Children’s Zyrtec Chewable Allergy Medicine for ages 6+ with 10 mg Active Ingredient Cetirizine HCl
Use 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.

Use 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 sever symptoms.

Adults 65 years and over Ask a doctor.

Consumers with liver or kidney disease Ask a doctor.

Use 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 sever symptoms.

Adults 65 years and over Ask a doctor.

Consumers with liver or kidney disease Ask a doctor.

Use 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.

ZYRTEC® Dye-Free Chewable Allergy Medicine Tablets with Active Ingredient Cetirizine HCl
Use 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.

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