The soap is called Hibitane as far as I know it's only available at the vets & must be diluted with water. It's actually a surgical scrub & quite strong which is why it need to be diluted.
You can check w the receptionists at your vet to see if they will sell or give you a small bottle of it, I had years ago bought a small bottle for a few dollars from the vet I had been using then.
Avoid biting when a simple growl will do
The Spirit Lives As Long As Someone Who Lives Remembers You - Navaho Saying
Vindication ~ For all those pets who became sick or lost their lives from tainted pet food