Heart & blood pressure Dogs & Cats

Clopidogrel (Plavix) for dogs and cats

Helps prevent blood clots, especially in cats with heart disease. [1]

Last reviewed: October 2026 · 2 sources · see sources

Quick answerClopidogrel is a prescription medicine for dogs and cats. It keeps platelets from clumping together into a clot. The most common side effects: stomach upset, vomiting, diarrhea and low appetite.

Key facts

Generic nameClopidogrel
Common brand namesPlavix
Used inDogs & Cats
TypeHeart & blood pressure
Prescription?Prescription
Typical US priceNot listed (no reliable public source)

What it's used for

Helps prevent blood clots, especially in cats with heart disease. [1]

How it works

It keeps platelets from clumping together into a clot. [1]

Side effects and cautions

Common side effects: Stomach upset, vomiting, diarrhea and low appetite. The pill is very bitter for cats. [1]

Use with care: Not for pets with active bleeding. Tell any vet doing surgery that your pet takes it. [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.

Clopidogrel FAQ

What is Clopidogrel used for in dogs and cats?

Helps prevent blood clots, especially in cats with heart disease.

What are the side effects of Clopidogrel?

Stomach upset, vomiting, diarrhea and low appetite. The pill is very bitter for cats.

Does Clopidogrel need a prescription?

Yes. It needs a prescription from a veterinarian.

How much Clopidogrel 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 – Clopidogrel (veterinary drug handout)
  2. FDA – Frequently asked questions about animal drugs