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Originally Posted by Fantastic49  good info, thanks! what have you heard about revolution that you wouldn't trust it against heartworms? |
I just know of enough vets/vet offices saying they getting positive heartworm tests on pups who take this drug. It just isn't not nearly as effective as Heartgard or Interceptor/Sentinel (IMO). There may be a higher reaction rate too, but I have not been able to confirm that...