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Outdoor cat eats rats. Best flea/worm prevention & heartworm test?

Updated On September 23rd, 2025

Do I need to test my cat for heartworms before starting to use a flea control product that prevents heartworms? He spends a lot of time outside and may be exposed to hookworms and/or roundworms. He eats rats. What would be the best flea control product to use on him? I like the idea of using a flea control product such as Revolution or Advantage Multi that also prevents/controls some types of worms besides killing fleas. Would it be overkill to use such a product & also use Drontal periodically?

1 Answer

Most Helpful Answer

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Answered By Jenny, DVM

Veterinarian

Published on February 17th, 2018

Cats do not require heartworm test prior to these medications. Drontal is a good idea to use with these as it covers tapeworms and those products do not. I like advantage multi as I feel it protects against fleas better

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