I am not a breeder but, (IMO) I wouldn't do it. My Mom gets dog fancy magazine. She was reading, just the other day, that a dog that was fronlined (or one of the other brands) could be smelled on his breath. I have also read where the saliva was tested and it was in their saliva! I know there is a natural flea spray that you can buy on line (or in Maine, that's where my Mom buys it) that will not go into their blood stream. Maybe you could talk to your vet and see what he thinks.
JMO
__________________ Brenda |