For many years it was thought that only dogs got HEARTWORM disease. We now know that"s not the case. Cat"s are susceptible to HEARTWORM disease also, and should be on a HEARTWORM preventative every month, year round. The products we use are "Revolution", applied topically, or "Feline Heartgard", given by mouth. Please see us to get your kitty protected! Click here to learn more.