ok, we just got back from our trip, well it WORKS... I gave the calm dog about half an hour before and she was all relaxed, I put her on her dog chair next to me in the front so I could see and she just looked out the window for the first 10 minutes and then she just fell asleep and did NOT shake or pant or anything, I went to Petco to walk around and pick up a bag of chews and she walked the store next to me without scare or anything, so IT WORKS..at least for us...
hugs,
Carmen in nj