Tackling fleas, how soon to apply another topical medication?

MontySD

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We gave our cat advantage but didn’t think it was working too great so we gave it to him again 2 weeks later. We also have frontline but I’m not sure if it’s ok to give it to him only 2 weeks after the 2nd advantage dose. I’m also doing the normal things to take care of the infestation in the house like vacuuming and spraying but I still find fleas and baby fleas meaning the lifecycle is continuing. Is it ok to give the frontline?
 

FeebysOwner

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The primary ingredients are different, but that is no guarantee that there wouldn't be an issue with the overlap. Neither one is supposed to enter the bloodstream, so that is a bit of a plus in my mind. However, I would ask your vet to see what they say. It may be that Adv doesn't work as well in your area (as my vet told me about where I live). Are you flea combing at least weekly as well?

I do know that Advantage II can actually be given weekly for serious infestations. I did every two weeks with Feeby for a while, and still in the long run we did not eradicate the fleas entirely. I still give it to her, because at 17+yo I am afraid of what else to use on her, and we are at least keeping the fleas to a minimum. We do vacuuming three times a week, and spray as well, but I have been having trouble getting her to cooperate with routine flea combings - so maybe that is our issue??

I guess if it were me, I would err on the side of caution, especially if your vet is 'on the fence' about it.
 
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