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

Hi, Lisinopril is used in the treatment of both heart failure and hypertension (high blood pressure) in dogs. In dogs required the drug the safe dose is 0.5 mg/kg which in the case of 13 lb (6.5 kg) puppy that would be 3.25mg which makes 10mg an overdose. Overdose may cause lethargy, increased heart rate, vomiting, and hypotension (low blood pressure). Seek veterinary care immediately. If it has happened less than an hour ago the vet may be able to induce vomiting. If not he will need to be monitored and supportive care depending on signs.

Havoc should be absolutely fine after ingesting the Proin tablet! He ingested approximately 4.4 mg/kg (milligrams per kilogram of body weight), and more serious signs of toxicity usually occur with doses over 15 mg/kg. There is a chance that Havoc may experience agitation, vomiting, decreased heart rate or elevated blood pressure. While these signs generally resolve within 24 hours of ingestion, it would be ideal to take Havoc to his vet for an exam and blood pressure measurement. I hope this helps!

A single dose (not overdosed) should not cause any harm if your dog is fit and healthy. Monitor him for the day, he may feel weaker than normal and urinate more. Make sure water is available all the time.

A single dose of this size of Vetoryl will likely pose no serious risk of toxicity. Monitor for lethargy, vomiting, diarrhea or loss of appetite. See your veterinarian if any of these symptoms develop.

Thank you for contacting Petco Pet Education Center, formerly Petcoach with your question about E. Low blood pressure is the most common sign of toxicity. Other signs include lethargy, excess salivation, increased heart rate, vomiting, diarrhea, weakness, and cough. If you see any of those signs, rush him into a vet immediately. I hope this helps!

He should be fine if he ate just one. Just monitor him closely for the next couple days for any abnormal symptoms. If any are noticed then he should see a vet ASAP. This NSAID ingredient is a derivative of aspirin but not as problematic. He should be fine but not all animals react the same to medications.

Typically allergy pills will make your pet a little lethargic, that is a normal side effect. And if he just got 1 pill there shouldn’t be any toxicity concerns. If you want to make absolutely sure then repost with your pets exact medication name and we can verify that things will be ok with Angel. Thanks for visiting Petco Pet Education Center, formerly Petcoach. Take care!