For years we have used Revolution on our small dog for flea and tick prevention, and we kept her on it year-round even though she is a house dog. I didn't want to take any chances! One year we decided to take a break during the winter and stop using it during the fall/winter months. In that first month she got fleas! We were out of our usual product (Revolution) so we had to get something at the store as our vet was closed, so we were able to get some Frontline Plus at the local pet store. This was awesome! It stopped those fleas in their tracks! It was very easy to use and apply, and it was cheaper than the Revolution we were purchasing from our vet. I also really love the fact that it's available in retail stores, making it extremely convenient to purchase, especially during later hours when the vet may be closed. Frontline has proven to be just as effective as the prescription Revolution and much easier to purchase. Excellent product!