Hi folks. This may seem like the wrong time of year to be dealing with this, but nevertheless I have a question. My vet says to use Heartgard for cats (5 to 15 lb, chewable), and use half a tablet for the dose. Well, the FAQ recommends a vet-made preparation of the same medication so that you have more consistency, and I believe prior testing of the ferrets. Your thoughts and experience, please. Which preventative method is best and easiest, or does it really matter which one you use, and do the farts really need to be tested first? My boys (2.5, 3.5, and 4 lbs.) go for leashed walks in the yard where mosquitos visit us. Thanks! Shelly (SC Ellis-Blackwell) [log in to unmask] [Posted in FML issue 2144]