Oh O.K. I know someone who feeds a supplement (no idea which one) which apparently has Valerian in it which she claims works..............Didn't see the dog before, so no idea if it made a difference or not.
I use the Feedmark one on my nutcase rottie and although she is still OTT at times it definitely has a calming effect. She is much worse when not on it!!
I have only used Rescue Remedy on mutts before - definately helped (put it in the water bowl) or I would speak to Global Herbs as my friend has used stuff from them before for dogs and they worked brilliantly!!