This is not directly ferret-related, but good for people to know. A few days ago, someone posted that 3 of her 6 dogs on Revolution came down with heartworm. What a lot of people don't realize, is that if you buy your preventative through your vet, and your pet gets heartworm (or any of the other parasites it's supposed to prevent), the company should cover the cost of treatment 100%. If this happens to you, ask your vet to contact the company about covering treatment. (I know for sure this applies to Sentinel, Heartguard, Topspot, Advantage, and ProHeart, and I would imagine it would apply to Revolution, also.) The only question might be if they would refuse to cover ferrets, because use in ferrets is off-label. Please be aware, this ONLY applies if you purchase your preventative FROM YOUR VET'S OFFICE. If you bought it online or through a petstore or other supplier, you're out of luck. Bright Blessings, Becky with Kodi, Twizzler, and Tanner missing Cinnamon, Coke, Pixie, Chitterbox, and Yozum [Posted in FML issue 4634]