Huh, that would be a dilemma if you had a flea problem!!!!! LOL We donāt have a flea problem either so Iāll probably switch to what youāre using LOLThat's good that it's working there. I think my vet said the Advantix works for ticks but not fleas and the Frontline works for fleas but not ticks. I could be remembering wrong though.... Anyway, we don't have a flea problem up here so Advantix II/Provecta Advanced works for us.