Xyzal (levocetirizine), a low-sedating prescription antihistamine available for the treatment of allergic rhinitis and urticaria, has now been approved by the U.S. Food and Drug Administration for children as young as 6 months of age (Previously, Xyzal was indicated for ages 6 years and older). The dosage is based on Xyzal solution (liquid), and is 1.25 milligrams (one-half teaspoon) every evening for children 6 months to 5 years of age.
This additional indication of Xyzal for lower age groups gives parents with allergic children an additional treatment option. Xyzal, in my opinion, is one of the better antihistamines available, particularly for the treatment of urticaria. Antihistamines, such as Xyzal, may also be useful for the treatment of itching due to atopic dermatitis.
Learn more about Xyzal: A State of the Art Antihistamine


my son was given XYZAL 2.5mg/5ml how much do i give my 4 year old???