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My dog ate all his heartworm medicine. Is it an emergency? What now?

Updated On September 23rd, 2025

Pet's info: Dog | Catahoula Leopard Dog | Male | unneutered | 2 months and 14 days old | 100 lbs

My dog got a hold of all his heart worm medicine, is he going to be alright

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on November 8th, 2016

I'm not sure how many tablets Pepper ate or the brand of medication and it's ingredients, but toxicity can occur with an overdose of heartworm medication. If he ate all of it, I'm assume he ate a full package, so I would take him into a vet right away. If it's been less than two hours since he ate it, he can be induced to vomit Bring the package of the mediation with you. You can also call the ASPCA Pet Poison hotline with the medication information, and they can advise you further. Their number is (888) 426-4435. Toxicity symptoms include vomiting, diarrhea, and lack of coordination. Please take Pepper into an ER vet now.

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