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Dog vomiting, diarrhea, dilated pupils, lethargic. Could it be poison?

Updated On September 23rd, 2025

Pet's info: Dog | Siberian Husky | Male | neutered | 2 years and 9 months old | 60.5 lbs

I came downstairs from putting my daughter to sleep and suddenly my 2 and 1/2 year old husky Einstein, (extremely healthy and vaccinated) has extremely dialated pupils, has vomited and had diarrhea all over the house and is extremely depressed and lethargic. I'm extremely worried! I don't know what he could have possibly gotten into! Does it sound like he ate something poisonous? Please help!

1 Answer

Most Helpful Answer

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Answered By Lauren Barry, BVSc, MRCVS, DVM

Veterinarian

Published on October 15th, 2017

Poor Einstein! yes some form of toxin / poison contact would be my first thought as well. If he has had recent access outside I would be concerned about plant or mushroom ingestion - there are quite a few plants can cause this and it is mushroom/ toadstool season as well. My next thought would be are there any medicines that you or your family take that he may have picked up a pill or licked something that was medicated? Finally some household chemicals including pesticides, ant bait, flea treatments, garden chemicals that also could cause this. Does his fur smell abnormal? I really recommend you take him to the ER vet right away. They will probably suggest calling the animal poison control line (which charges a consult fee but is very valuable information). They may start him on IV fluids to help flush out whatever is causing this effect. If they suspect it's on his fur they may bathe him, they may also treat his vomiting an diarrhea symptoms as well there are some general antidote type medicines that they may consider if appropriate. I hope he recovers quickly.

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