A while ago I noticed that Frontline was no longer killing our cat's fleas. I went to the vet and asked for an alternative, and they said that the reason that Frontline appeared not to be working was most likely that our house was infested, so that new fleas were hopping on straight after the treatment. This didn't sound right to me so I eventually got some Advantage and this seems to be doing the job.
I went back today to get more Advantage and the vet told me the same thing again, that there was no issue with resistance to Frontline, and if it didn't work this was due to "environmental infestation", despite checking the cat for fleas and finding none, and being told that the fleas disappeared once we switched from Frontline to Advantage. He seemed quite certain that fleas do not become resistant to a particular treatment. If this is true I just don't know what the explanation could be.
Have any vets or cat owners on here had experience of this? Is he right and the change of treatment is just a coincidence? Or do we have resistant fleas? (We are in London if that helps.)
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The litter tray
Frontline and Flea resistance
36 replies
BartonStacey · 21/01/2012 14:26
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