You might check with another vet, or check with the Advantage site, but I've found that 1/2 of the recommended dose usually works, & there'd be less "product" on the mother.

I wish you the best.

I would use half a dose. You might also go get some diatomaceous earth, not the stuff for a pool - that has added checmicals, just plain ol DE from the garden center or on line, it is very inexpensive. Place some down in a twel or some bedding (under the towel or bedding) and around the area where the dog has made her nest, this will help kill any fleas that jump off of her in order to lay eggs. Reapply if it gets wet. Be careful not to breathe too much of the stuff...good luck

Thanks to you both.I have called every vet in my area and they all said I could use either.I will start with half the dose and will look into the diatomaceous earth for the ground.Debbie