Get powerful relief from indoor, outdoor, and seasonal allergy symptoms with Children's Zyrtec 24 Hour Allergy Relief Syrup. With 5 milligrams of the antihistamine cetirizine hydrochloride in each 5 mL dose, this over-the-counter children's allergy medicine offers all-day, 24-hour relief from common symptoms of hay fever, seasonal allergies, and other upper respiratory allergies. Kid's allergy liquid provides consistently powerful relief for your kids' allergies and helps treat symptoms such...