k9 advantix
very happy with product. i used last year-infestation with fleas was gone almost instantly. we're using this year as a preventive measure.

Does not work on Ticks
For the second summer in a row, we have a tick infestation while my dog is on K9 Advantix. These big fat nasty ticks are everywhere and completely gross! It works well for fleas as I haven't seen a flea in ages, but this tick problem is just horrible. And I've even been dosing him every 3 weeks rather than 4. Guess I'll switch to Frontline Plus and see how that goes, but no more K9 Advantix for us.

K9 Advantix Worked Well
My dog had a severe infestation of fleas and after looking over the major brands on the market, most notably Frontline and Program, I decided on going with K9 Advantix. It worked. Upon application, my dog behaved a bit restless and uncomfortable and scratched uncontrollably. (I think it drove the fleas on a mass exodus that must quite uncomfortable.) Two hours after application I noticed dying fleas everywhere he went. Within a day, there wasn't a living flea on him. Over the course of the month, the medicine has continued to work, though around the 25th day I did notice a flea. (Could have picked it up outside). I'm happy with the results of this product, especially for how severe the situation was going into the treatment.

Great product
I was using Revolution on my dogs for the past few years for the convenience of not having to give them a heartworm pill every month. However, recently I was dogsitting for a friend who uses Advantix. All of the dogs were playing out in the yard. When they came in, I noticed that only my two dogs had welts, which were mosquito bites, all over them. I decided to try Advantix and no more mosquito bites! I am very happy I decided to switch.

The best!
You don't know how many other products we tried for our boxer, Goyo. Frontline didn't help at all. We even had to get rid aof all the carpets in the house and spray the lawn with antiflea treatments. Nothing would help and the dog kept suffering. Then our vet recommended Advantix as it doesn't only kill the fleas it also repells. As soon as we start using it, the year long problem of flea invasion was over.