Amazon has the Zyrtec Children's 24 Hour Allergy Relief 5 mg Cetirizine HCl Antihistamine Syrup (4 oz) for $6.99 - 5% off with Subscribe & Save (can cancel anytime) - 20% off coupon (check “Save an extra” box, eligible on first S&S order for this product) = $5.24 with free shipping on $35+ or with Prime (extra 15% off for 5+ subscribe and save orders).