I wanted to find out which flea meds to watch out for, so I did a search on Pyrethrins. I found a website that lists the chemicals used in flea products. K9 Advantix
is on the list of products that use Pyrethrins and Pyrethroids (permethrin, phenothrin, etofenprox, fenvalorate), which are the chemicals discussed in the clip.
The website is
here.
So beware! Assuming this website is correct, Advantix does contain these chemicals.
For flea and tick prevention, I usually use safer natural products like shampoos and sprays containing NEEM oil and sometimes other essential oils (eucalyptus, cedar, citronella, rosemary, etc.), which work very well. When I occasionally get a flea outbreak I use Frontline.
(Note: people should take care when using essential oils with cats, or not use them at all -- I'm not sure because different sources say different things.)