yesterday at one of our classes behaviorist/trainer shared with us that Lactium has been found to be useful for dogs with reactivity issues, especially like Leo for auditory and visual sensitivity. http://www.swansonvitamins.com/SWU369/ItemDetail She also used melatonin successfully for thunder phobias. This site also has L theanine reasonably priced. We are ok with thunder, Leo is not reacting to noises outside of his crate and if provided with " thunderbone" i.e. marrow bone everything is fine. But I am willing to experiment with few herbals to see so I am buying some of Lactium to try as well.