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Dr. Gregg
Dr. Gregg, Dog Veterinarian
Category: Dog Veterinary
Satisfied Customers: 370
Experience:  35 years experience providing medical care for dogs
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My 18 pound mini Australian shepherd ate a heartworm pill

Customer Question

my 18 pound mini Australian shepherd ate a heartworm pill for a dog 51-100 lbs.? should I worry
Submitted: 7 months ago.
Category: Dog Veterinary
Expert:  Dr. Gregg replied 7 months ago.

Hi, I'm Dr. Gregg and I will try to help you today. Was it a pill with Ivermectin in it?

Customer: replied 7 months ago.
but this dog has been taking that brand for a year
Customer: replied 7 months ago.
I am concerned with the size of the dose
Expert:  Dr. Gregg replied 7 months ago.

The standard heartworm pill is dosed at 6 mcg/kg. Even in the sensitive, white footed herding dogs with the mdr1 gene mutation who are sensitive to ivermectin, the toxic dose is around 200mcg/kg, or 33 time the dose. You are well below that dose so you should be fine. If you were looking for signs of a toxicity it would be anxiousness, staggering and trembling and drooling. I think you should be fine.

Customer: replied 7 months ago.
Thank you
Expert:  Dr. Gregg replied 7 months ago.

As with anything, if you think something is wrong, give your vet a call but that dose should not hurt him.

Expert:  Dr. Gregg replied 7 months ago.

Glad to help. Do you have any more questions? I would be happy to answer them. If not please accept my answer and have a good evening. Good luck with Jack. Dr. Gregg