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My cat threw up worms two months after deworming. Is he okay?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | neutered | 9 months and 14 days old | 8 lbs

My cat was de-wormed two months ago but he threw up worms for the first time this morning. He seems fine, he's playful and his behavior seems normal. My vet isn't open until Monday, will he be okay until then?

1 Answer

Most Helpful Answer

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Answered By Jenna Beyer, DVM, MBA, cVMA

Veterinarian, Certified Veterinary Acupuncturist

Published on February 15th, 2020

When we deworm a pet, it only kills the worms in the body. For some types of intestinal parasites, a repeat dewormer 3-4 weeks later is required to completely rid the infection. If Fiyero is otherwise normal (good activity and eating well), he can probably wait until Monday.

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