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My puppy is weak and breathing fast after dewormer. What to do?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 1 month and 19 days old | 4.41 lbs

I went to a vet clinic yesterday & my pup was given a deworm medicine & the vet prescribe me an antibiotic & multivitamin. I just gave my pup the medicine & now his breathing is rapid & he was weak (laying down). What should i do? and he vomited worms yesterday.

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1 Answer

Most Helpful Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on March 1st, 2018

It's very likely to be the deworming, it can cause these side effect, your puppy should feel much better by tomorrow, if he doesn't or if he is still vomiting you will need to take him back to the vet to get treated.

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