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My dog ate one lisinopril pill. Should I be concerned about toxicity?

Updated On September 23rd, 2025

Pet's info: Dog | Cocker Spaniel | Male | neutered | 1 year old | 25 lbs

Not sure, but my 1 year old cocker spaniel May have eaten 1 of my 30 mg lisinopril. He seems fine. Should I be concerned?

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on November 4th, 2018

He should be fine. You may see some vomiting, diarrhea and/or lethargy. He would need to ingest 8 of the pills for there to be a risk of toxicity. If necessary, withhold food for 24 hours, allowing small amounts of water or unflavored PediaLyte. Resume feeding a bland diet in small, frequent amounts until any symptoms of GI upset resolve. Transition slowly to his regular diet afterwards. If symptoms persist or worsen, have him examined by your veterinarian.

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