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How long after deworming should my cat stop vomiting from worms?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | unneutered | 4 lbs

how long does it take worm medication to stop a cat from vomiting

1 Answer

Most Helpful Answer

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Answered By C. Rathjens, DVM

Veterinarian

Published on November 26th, 2018

Deworming doesn't directly stop vomiting. IF the vomiting is indeed caused by the intestinal worms, I would expect vomiting to stop within a week or so of deworming, but it could be longer if the parasite load was causing a lot of irritation. I would still recommend a recheck if still vomiting after 5-7 days.

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