Heartworm Prevention


Heartworm is a deadly disease transmitted by mosquitos. It is easily prevented but difficult to treat. First, adult female heartworms release their young, called microfilariae, into an animal’s bloodstream. Then, mosquitoes become infected with microfilariae while taking blood meal from the infected animal. During the next 10 to 14 days, the microfilariae mature to the infective larval stage within the mosquito. After that, the mosquito bites another dog, cat or other susceptible animal, and the infective larvae enter through the bite wound. It then takes a little over 6 months for the infective larvae to mature into adult worms. In dogs, the worms may live for up to 7 years. Microfilariae cannot mature into adult heartworms without first passing through a mosquito.

Courtesy of the American Heartworm Society

Heartworm disease is easily treatable with a monthly regimen. Miller Animal Clinic recommends keeping your pet on year-round heartworm prevention to ensure your pet is safe. Here are the different types of heartworm preventative we offer at our clinic.

    • Interceptor Plus Canine

Chicken flavored chewable chunk, good for 1 month. Covers heartworm, roundworms, hookworms, whipworms, and tapeworms.

    • Sentinel Spectrum Canine

Beef and bacon flavored chewable tablet, good for 1 month. Covers heartworm, roundworms, hookworms and whipworms and tapeworms. Sterilizes adult fleas.

    • Pro Heart 6 Canine

Injection given by a Licensed Veterinarian. Good for 6 months, covers heartworm and treats hookworms upon injection. An appointment is required to receive the injection.

    • Revolution Canine

Topical treatment that goes between the shoulder blades. Covers heartworms, kills adult fleas and prevents eggs from hatching. Kills American Dog Tick.

    • Revolution Feline

Topical treatment that goes between the shoulder blades. Covers heartworms, kills adult fleas and prevents eggs from hatching. Also covers hookworm, roundworm, and ear mites.