Pain & arthritis Dogs & Cats

Tramadol for dogs and cats

A synthetic opioid sometimes used for pain in dogs and cats. [1]

Last reviewed: October 2026 · 2 sources · see sources

Quick answerTramadol is a prescription medicine for dogs and cats. It acts on opioid receptors and also on serotonin and norepinephrine pathways that help block pain. The most common side effects: dogs: sedation, tremors, anxiety, vomiting, diarrhea or constipation.

Key facts

Generic nameTramadol
Common brand namesUltram
Used inDogs & Cats
TypePain & arthritis
Prescription?Prescription
Typical US priceNot listed (no reliable public source)

What it's used for

A synthetic opioid sometimes used for pain in dogs and cats. [1]

How it works

It acts on opioid receptors and also on serotonin and norepinephrine pathways that help block pain. [1]

Side effects and cautions

Common side effects: Dogs: sedation, tremors, anxiety, vomiting, diarrhea or constipation. Cats: vomiting, constipation, sedation and dilated pupils. [1]

Use with care: It is a controlled substance. Use caution in pets with seizures and pets on SSRIs, trazodone or other drugs that raise serotonin. [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.

Tramadol FAQ

What is Tramadol used for in dogs and cats?

A synthetic opioid sometimes used for pain in dogs and cats.

What are the side effects of Tramadol?

Dogs: sedation, tremors, anxiety, vomiting, diarrhea or constipation. Cats: vomiting, constipation, sedation and dilated pupils.

Does Tramadol need a prescription?

Yes. It needs a prescription from a veterinarian.

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