Well, my Comfortis came in the mail today all the way from Australia. Tomorrow morning will be the test when we feed the girls - then they are going outside so the fleas can die out there. Keeping our fingers cross that it doesn't give them upset tummies - vomit is one of my least favorite things to clean up!!! BTW, the place I found it the cheapest was Petsvetshop.com.au - around $67 for six tablets 60-100 lbs dogs. Talk about horse pills!!! Wish there was something like this for felines.