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My dog accidentally got a double Heartgard dose. What to watch for?

Updated On September 23rd, 2025

My wife gave my 8 and 1/2 pound Shih Tzu mix her dose of Heartgard yesterday the 7th and I accidentally not knowing gave her another dose this morning is there anything we should really watch out for?

1 Answer

Most Helpful Answer

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Answered By Ana M, DVM

Veterinarian

Published on July 7th, 2019

Thank you for submitting your question regarding your dog. She likely will not have a problem as this medication has a wide safety margin. I would recommend monitoring her for any vomiting, diarrhea or neurological issues such as muscle tremors. I hope this information helps!

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