We use Sentinel for Tatum and Stormie (our Aust Shep) along with Comfortis. We give them Sentinel on the first of the month and Comfortis on the 15th. According to our vet, because of the horrible flea problem in our area plus the fact that most times these products don't work for the full 30 days, it's best to stagger with the other product.
We discovered recently that Tatum has a flea allergy so if she gets bit by even one flea, her whole body breaks out and the itching is horrible. This routine we've been following has helped her greatly!
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~ Angie |