Lucy takes it twice a day. It has helped her tremendously. I have found that you have to give it daily for it to fully work. Giving it "here and there" won't work as well. At first she was a little drowsy but in a month or so it didn't seem to bother her.
About two years ago we were frustrated here with allergies. Failed allergy shots. Lucy has been on a fantastic food called ziwi peak, hydroxyzine twice a day, fish oil and she hasn't had a bump on her this year even with how bad allergies are this year. I hope your guys do well.