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After deworming, when will my pet pass worms and will I see them?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | neutered | 2 years old | 0 lbs

How long after my pet is wormed does it actually works for him to pass the worms.

1 Answer

Most Helpful Answer

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Answered By Andrea M. Brodie, DVM

Veterinarian

Published on August 12th, 2018

Often you will not see the dead worms in the feces unless your pet had a very severe infection. Sometime dead worms will get digested or come out in the same color as the feces. The worms should be dead pretty soon (24 hrs) after worming.

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