"My Bernese Mountain Dog was perscribed Revolution when it was suspected that he may have sarcoptic mange. I had to use this product on my other dog in case the disease had spread to her. Fortunately, neither had the disease but I will continue using this product because it has done a tremendous job with flea and tick control! I live on a small farm where infestations of fleas and ticks are hard to control on our property, hence, hard to control on our animals. Revolution has surpassed the other flea control product I have used in the past, plus the convenience of not having to administer an additional heartworm preventative. This helps cut down on the cost of the medications I use on my dogs, an additional benefit of using Revolution."