When my senior dog began having panic attacks with no obvious trigger the vets at PDSA recommended KalmAid. What a difference it has made to both our lives! Bob licks it off a spoon and I can't give it to him quick enough, to him it's a treat not medicine. Have been using daily for well over 6 months in conjunction with an Adaptil Collar. Panic attacks are now very rare and Bob's so much more content after spending much of his life since he was rescued frightened of any loud noises. If you have a nervous dog, I would definitely say to give this a try.