We have two large dogs - a great pyr and a German shepherd - I've had my pyr for 3 yrs but recently adopted our shepherd and needed heartworm and flea/tic meds asap. The rescue we adopted our shepherd from recommended you and we were very satisfied with the variety of products, how quickly they arrived seeing as how they were shipped to Texas from the U.K., but the price was amazing. I've already recommended to a coworker who has ordered from you as well!!