Seizures Dogs & Cats

Levetiracetam (Keppra) for dogs and cats

Treats seizures, often added to other seizure drugs in dogs. [1]

Last reviewed: October 2026 · 2 sources · see sources

Quick answerLevetiracetam is a prescription medicine for dogs and cats. It changes how brain cells release signals, making seizures less likely. The most common side effects: dogs: sleepiness, wobbliness.

Key facts

Generic nameLevetiracetam
Common brand namesKeppra
Used inDogs & Cats
TypeSeizures
Prescription?Prescription
Typical US priceNot listed (no reliable public source)

What it's used for

Treats seizures, often added to other seizure drugs in dogs. [1]

How it works

It changes how brain cells release signals, making seizures less likely. [1]

Side effects and cautions

Common side effects: Dogs: sleepiness, wobbliness. Cats: low appetite, drooling, sleepiness. [1]

Use with care: Don't stop suddenly. Use caution with kidney disease. [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.

Levetiracetam FAQ

What is Levetiracetam used for in dogs and cats?

Treats seizures, often added to other seizure drugs in dogs.

What are the side effects of Levetiracetam?

Dogs: sleepiness, wobbliness. Cats: low appetite, drooling, sleepiness.

Does Levetiracetam need a prescription?

Yes. It needs a prescription from a veterinarian.

How much Levetiracetam 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.

Related medications

Related cost guides

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 – Levetiracetam (veterinary drug handout)
  2. FDA – Frequently asked questions about animal drugs