If you are:
Precaution: PROBABLY COMPATIBLE PER BRIGGS;MAY CAUSE SEDATION IN NURSING INFANT.
An adult over 60:
management or monitoring precaution: Increased risk for neurological side effects. Dosage adjustment may be required.
Giving Zyrtec to a child under 12:
management or monitoring precaution: Safety and efficacy not established in infants age <6 months.