Walter the Cat lives with me in a large house on a big lot in a rural area with a cold climate, all factors which add up to mice. Walter’s job is to hunt mice in the house and outdoors around the perimeter.

Since Walter spends much time outside, his veterinarian recommends treating him topically to prevent fleas, ticks, and ear mites on his coat, and roundworms, hookworms, and heartworms internally.

This chemical treatment is sold under the trade name Revolution Plus by the pharmaceutical company Zoetis Petcare. Like human medicine, it is available only by prescription.