I've got a bottle of Meadows & Rain Febreze. It says it's IAMS certified for safe use around cats and dogs, but it doesn't say anything about use directly on a dog. I'm only asking this because I remember reading something about it on some LJ community, how it helps eliminate mild odor between baths.
If it matters, my dogs are female Rottweilers. One's around 6 and very large, the other's around 2 and about average size (for a Rottweiler, that is).
Obviously I wouldn't spray near their face or around their crotch where it would be licked.