I live and die by this allergy medicine, even though I am an adult. I don't take it every day, but when my symptoms are out of control I can count on this liquid generic Zyrtec to save my bacon. Walgreens often has this stuff on sale, making it even more affordable. It also tastes great (for medicine) and it takes effect quickly but does not make me drowsy like Chlortrimeton . I used to use Claritin but it didn't work as well as Zyrtec for me.