Zyrtec Tablets Dosage
Generic name: cetirizine hydrochloride
Dosage form: tablets, chewable tablets, syrup
Medically reviewed by Drugs.com. Last updated on Sep 28, 2020.
ZYRTEC can be taken without regard to food consumption. ZYRTEC is available as 5 mg and 10 mg tablets, 1 mg/mL syrup, and 5 mg and 10 mg chewable tablets which can be taken with or without water.
Adults and Children 12 Years and Older
The recommended initial dose of ZYRTEC is 5 mg or 10 mg per day in adults and children 12 years and older, depending on symptom severity. Most patients in clinical trials started at 10 mg. ZYRTEC is given as a single daily dose. The time of administration may be varied to suit individual patient needs.
Children 6 to 11 Years
The recommended initial dose of ZYRTEC in children aged 6 to 11 years is 5 mg or 10 mg once daily depending on symptom severity. The time of administration may be varied to suit individual patient needs.
Children 2 to 5 Years
The recommended initial dose of ZYRTEC in children aged 2 to 5 years is 2.5 mg (½ teaspoon) syrup once daily. The dosage in this age group can be increased to a maximum dose of 5 mg per day given as 1 teaspoon syrup once a day or one ½ teaspoon syrup given every 12 hours, or one 5 mg chewable tablet once a day.
Children 6 months to <2 years
The recommended dose of ZYRTEC syrup in children 6 months to 23 months of age is 2.5 mg (½ teaspoon) once daily. The dose in children 12 to 23 months of age can be increased to a maximum dose of 5 mg per day, given as ½ teaspoon (2.5 mg) every 12 hours. Syrup is recommended for children under the age of 2 years.
Dose Adjustment for Renal and Hepatic Impairment
In patients 12 years of age and older with decreased renal function (creatinine clearance 11–31 mL/min), patients on hemodialysis (creatinine clearance less than 7 mL/min), and in hepatically impaired patients, a dose of 5 mg once daily is recommended. Similarly, pediatric patients aged 6 to 11 years with impaired renal or hepatic function should use the lower recommended dose. Because of the difficulty in reliably administering doses of less than 2.5 mg (½ teaspoon) of ZYRTEC syrup and in the absence of pharmacokinetic and safety information for cetirizine in children below the age of 6 years with impaired renal or hepatic function, its use in this impaired patient population is not recommended.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Frequently Asked Questions
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- Drug class: antihistamines
- Zyrtec (Cetirizine Capsules and Tablets)
- Zyrtec (Cetirizine Chewable Tablets)
- Zyrtec (Cetirizine Liquid)
- Zyrtec (Cetirizine Orally Disintegrating Tablets)
Other brands: Quzyttir