Quote Originally Posted by kallisto4529
well i dont know about the Advantix being deadly to cats, seeing as i have a cat and i have used it since it first came out, with the recommendation of my vet, never once has bei-jing ever had any problems. I dont use it on her, i have only used it on the dogs, but she has never been sick or anything from it.
You may have been lucky and I'd begin to wonder if your vet ever actually read the label on Advantix. After reading these parts of their label I certainly wouldn't use it in a household with cats!!

K9 Advantix Label


Found this on Bayer (the manufacturer of K9 Advantix) website about the Advantix product.


Do not use ADVANTIX® on cats.

PRECAUTIONS
Do NOT apply to cats or animals other than
dogs. Do NOT permit cats to actively groom
or have close physical contact with a recently
treated dog. Due to their unique physiology
and inability to metabolise certain
compounds, the product must not be used
on cats. If applied to a cat, or ingested by a
cat, this product may have serious harmful
effects. If this occurs consult your veterinary
surgeon immediately.

NOT TO BE USED FOR ANY PURPOSE, OR IN
ANY MANNER, CONTRARY TO THIS LABEL
UNLESS AUTHORISED UNDER APPROPRIATE
LEGISLATION.