Why You Need Flea and Parasite Prevention for Cats (Even Indoors)...
It is a common misconception that indoor cats do not need prevention against fleas, ticks, and intestinal parasites.
We recommend giving your cats Frontline for ticks, and Revolution or Advantage Multi for fleas, heartworms, and internal parasites. Unfortunately, your home is not fully protected from the outside world. Multi-pet households with dogs have an increased chance of bringing these parasites indoors.