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My puppy is sick after dewormer. Will my other dog get worms too?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | unspayed | 8 lbs

New puppy and it has hookworms or roundworms and I have it 7 way dewormer yesterday morning ! It has been throwing up and has really stinky bad diarrhea . How long will this last ? And I have another dog that's 3 years old we had her first and she's never been sick ! Will she get these worms or will she be ok ?

1 Answer

Most Helpful Answer

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Answered By Destini R. Holloway, DVM

Veterinarian

Published on September 25th, 2017

Thanks for visiting Petco Pet Education Center, formerly Petcoach! Poor Goose. Sounds like Goose may be having a bad reaciton to this particular dewormer or maybe even had the wrong dosage. Check your dosage, and if it was correct I would consider contacting your vet for an alternative dewormer (ie Pyrantel palmoate). Pyrantel palmoate dewormer is typically more tolerable and only treats for 2 worms, instead of the 7 way dewormer that you claim to have. I would also suggest feeding her a bland diet of boiled plain chicken and rice or cottage cheese with 1-2 tsp of canned pumpkin (not the pie filling) to help settle her stomach and bulk up her stools. And yes worms can be transmitted to other pets via the poop. So clean up all he feces and disinfect the floor with diluted bleach if Goose has an accident in the home. If your adult dog is on a monthly heartworm preventative then this has an intestinal dewormer in it as well that should take care of both these worms.

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