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Found roundworm after deworming. Is my cat's Revolution still working?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | neutered | 10 lbs

I found a roundworm on my cats bed. Both cats and dogs were given a dewormer a month ago. Which flea medication should I give to my dogs now? I have revolution for the cats but I’m not sure if part of it evaporated. How much should be given to a 10lb Cat?

1 Answer

Most Helpful Answer

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Answered By Dr. Heidi DVM, CVA, CCRT, CVTP, CVSMT, CVCH

Veterinarian, Certified Veterinary Acupuncturist, Certified Canine Rehabilitation Practitioner

Published on January 3rd, 2018

I have attached more information on roundworms in dogs and cats below because it is a little different for each species. https://www.veterinarypartner.com/Content.plx?P=A&S=0&C=0&A=476 https://www.veterinarypartner.com/Content.plx?P=A&S=0&C=0&A=498 Keeping your dogs on regular heartworm preventative should prevent them from having problems with roundworms. Here is a comparison of heartworm prevention products. https://www.veterinarypartner.com/Content.plx?P=A&S=0&C=0&A=488 Most flea preventatives do not have a dewormer in them, but here is a listing of current flea control products and what they treat/prevent. http://www.veterinarypartner.com/Content.plx?P=A&S=0&C=0&A=2858 The Revolution dose for Oscar would cover 5-15 pounds, so I would not expect a problem with his weight since he is right in the middle of that. It is possible to see worms passed after deworming, so just because you see a worm does not mean the Revolution is not working. Good luck! I hope that was helpful. Thanks for using PetCoach.

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