Relieve your child's runny nose, watery eyes, itchy nose, and more with this grape- and berry-flavored allergy liquid. Children's Allegra® Allergy 12 Hour Liquid is designed to relieve tough allergy symptoms for children 2 to under 12 years of age. It's non-drowsy so it won't affect their concentration due to drowsiness — and offered in a grape and berry liquid flavor. And Children's Allegra® is the #1 allergist recommended children's non-drowsy allergy brand.