My dog ate ACE-inhibitors – what should I do?

Updated 2026-09-30 · 1 sources

Based on: Pet Poison Helpline

Call a vet now

Call your vet or the nearest emergency vet right now. Poisonous amounts can cause low blood pressure in pets.

What to do now

What to do right now

Call your vet or the nearest emergency vet.
Note what, how much and when.
Bring the packaging.
Keep your dog calm.
Remove what is left.

Don't

Do not make your dog vomit unless a vet tells you to.
Do not give any human medicine.

Why it can be dangerous

ACE-inhibitors are cardiac medications used in human and veterinary medicine.^[1] When pets ingest poisonous amounts, ACE-inhibitors can result in low blood pressure.^[1]

Signs to watch for

Vomiting
Diarrhea
Lethargy
Weakness
Kidney failure
High blood pressure
Low blood pressure

Where it is found

Human medicines
Veterinary medicines

If your pet is struggling to breathe, has collapsed, is having a seizure or can't stand up: go to the nearest vet now.

Not sure how serious it is?

OkPaw asks a few quick questions about your pet and tells you in 30 seconds whether it can wait. Free on Google Play for Android.

OkPaw is on Android now – an iPhone version is on its way.

Common questions

How much is dangerous?

Call your vet or the nearest emergency vet right now rather than trying to judge the risk yourself.

Which signs should I watch for?

If you notice any of the listed signs, call your vet or the nearest emergency vet right now.

What should I do now?

Note what, how much and when, bring the packaging, and keep your dog calm while you call your vet.

Sources

Pet Poison Helpline

How this page was made: written with the help of AI from the sources below, then checked claim by claim against those sources. Urgency levels follow OkPaw’s fixed safety rules. It is guidance, not a diagnosis. How we write our pages