Zyrtec Children's Allergy Relief 10 mg Strength Tablet 12 per Box - 12 Count CartonChildren's Zyrtec gives 24 hours of relief of sneezing; runny nose; itchy, watery eyes; and itchy throat or nose for children 6 years and older Each dissolve tablet has 10 milligrams of cetirizine HCl Because Zyrtec is not nondrowsy, it is probably best to dose before bedtime There are a dozen dissolve tablets in a carton