Lamby: I have also used the stuff from the vet,I also cannot remember the name of it,but is squirt in onto the carpet and just let it soak down in...because I'm sure the urine has gone all the way down to the padding..then you clean it up.....also,not sure where you live but there is stuff called odo-ban that is teriffic...try the vets office first though,tell them what happened and they will know EXCATLY what you need :)