My 6 yr old male, longhair, tailess domestic cat has been on Advantage for flea control for about 5 years. Initially, Advantage worked great, but I noticed later it became less effective. I tried Frontline as an alternative but did not feel it worked as well. Do fleas become immune to preventatives over a period of time? Do you have a recommendation that is as affective as Advantage was in the beginning?
You may need to combine different types of flea control. Advantage can be applied every 2 weeks. If this does not work then try a combo of Advanatge and Program. A new product out from advantage called Advantix may help also. Look into it. vetcare