Dosing for children may be different, too, so it's important to read the label for dosage guidance. As an antihistamine, ...

Less common side effects include headaches, and nausea. Diarrhea and coughing have also been observed in children. Cetirizine, the active ingredient of Zyrtec, is a second-generation antihistamine ...

Cetirizine HCl 10mg; citrus flavor. Dissolve tabs: may take with or without water. For doses <5mg: use syrup. <2yrs: not recommended. 2–6yrs: initially 2.5mg once daily; max 5mg once daily or 2. ...

Cetirizine HCl 1mg/mL; grape flavor, and bubble gum (sugar- and dye-free) flavor. Dissolve tabs: may take with or without water. For doses <5mg: use syrup. <2yrs: not recommended. 2–6yrs ...