Question: how many mg of antihistamine in zyrtec?
Answer: Cetirizine is available under the following different brand names: Zyrtec, Zyrtec Allergy, Children's Zyrtec Allergy, Children's Zyrtec Hives Relief, PediaCare Children's 24 Hour Allergy, Aller-Tec, and Wal-Zyr. 5 mg to 10 mg orally each day, depending on severity of symptoms; not to exceed 10 mg each day.