Heart & blood pressure Dogs & Cats

Enalapril for dogs and cats

Treats heart failure, high blood pressure and protein loss in the urine; also used in kidney disease. [1]

Last reviewed: October 2026 · 2 sources · see sources

Quick answerEnalapril is a prescription medicine for dogs and cats. An ACE inhibitor: it relaxes blood vessels and lowers the strain on the heart and kidneys. The most common side effects: low appetite, vomiting, diarrhea and tiredness.

Key facts

Generic nameEnalapril
Common brand namesEnacard, Vasotec
Used inDogs & Cats
TypeHeart & blood pressure
Prescription?Prescription
Typical US priceNot listed (no reliable public source)

What it's used for

Treats heart failure, high blood pressure and protein loss in the urine; also used in kidney disease. [1]

How it works

An ACE inhibitor: it relaxes blood vessels and lowers the strain on the heart and kidneys. [1]

Side effects and cautions

Common side effects: Low appetite, vomiting, diarrhea and tiredness. Low blood pressure or kidney changes are possible. [1]

Use with care: Your vet will usually check kidney values and potassium. Use extreme caution in pregnant pets. [1]

Call your vet right away if your pet has trouble breathing, facial swelling, hives, collapse, or any side effect that is severe or getting worse.

About dosingDosing is your vet's call. We don't list doses because the right amount depends on your pet's weight, age, health and other medicines. Don't change a dose or stop a medicine without asking your vet, and never give a pet medicine meant for people unless your vet tells you to [2].

What it costs

We don't list a price for this one because we couldn't find a reliable public source. Ask your vet or pharmacy for a quote; prices depend on your pet's size, the dose and where you fill it.

Enalapril FAQ

What is Enalapril used for in dogs and cats?

Treats heart failure, high blood pressure and protein loss in the urine; also used in kidney disease.

What are the side effects of Enalapril?

Low appetite, vomiting, diarrhea and tiredness. Low blood pressure or kidney changes are possible.

Does Enalapril need a prescription?

Yes. It needs a prescription from a veterinarian.

How much Enalapril should I give my pet?

Only your veterinarian can tell you. The right dose depends on your pet's weight, health and other medicines, so we don't list doses. Never give a pet a medicine prescribed for a person or another animal without asking your vet.

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This page is general information for pet owners, not veterinary advice. Talk to your vet about your own pet.

Sources (2) — tap to show
  1. VCA Animal Hospitals – Enalapril (veterinary drug handout)
  2. FDA – Frequently asked questions about animal drugs