If you want to eliminate or prevent fleas, ticks, ear mites and heartworms in your dog and cat with one monthly topical treatment, ask your vet about Revolution. The active ingredient in this medication, selamectin, is approved by the U.S. Food and Drug Administration for use in canines and felines, but the dosage amounts vary considerably.
To purchase Revolution, you need a veterinary prescription. While other topical canine and feline flea and tick control products are available over the counter, they don't contain heartworm control medication. It's important that your vet perform an annual blood test on your pet to ensure he's heartworm-free before prescribing Revolution. Your vet doesn't just prescribe Revolution for cats or dogs, but the correct dosage size for your individual animal. Recommended dosage amounts for cats depend on whether the animal is above or below 5 pounds. Recommend amounts for dogs fall into five basic sizes, ranging from dogs weighing 5 pounds to those 130 pounds and over.