Antibiotics Dogs & Cats

Clavamox for dogs and cats

Treats skin and soft tissue infections, gum disease in dogs and urinary infections in cats. [1]

Last reviewed: October 2026 · 3 sources · see sources

Quick answerClavamox (amoxicillin-clavulanate) is a prescription medicine for dogs and cats. Amoxicillin kills bacteria by damaging their cell walls. Clavulanate protects the amoxicillin from enzymes some bacteria use to fight back. The most common side effects: stomach upset, vomiting and diarrhea.

Key facts

Generic nameAmoxicillin-clavulanate
Common brand namesClavamox
Used inDogs & Cats
TypeAntibiotics
Prescription?Prescription
Typical US priceNot listed (no reliable public source)

What it's used for

Treats skin and soft tissue infections, gum disease in dogs and urinary infections in cats. [1]

How it works

Amoxicillin kills bacteria by damaging their cell walls. Clavulanate protects the amoxicillin from enzymes some bacteria use to fight back. [1]

Side effects and cautions

Common side effects: Stomach upset, vomiting and diarrhea. Giving it with food can help. [1]

Use with care: Not for pets allergic to penicillins or cephalosporins. Finish the full course even if your pet seems better. [1] [2]

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 [3].

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.

Clavamox FAQ

What is Clavamox used for in dogs and cats?

Treats skin and soft tissue infections, gum disease in dogs and urinary infections in cats.

What are the side effects of Clavamox?

Stomach upset, vomiting and diarrhea. Giving it with food can help.

Does Clavamox need a prescription?

Yes. It needs a prescription from a veterinarian.

How much Clavamox 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 (3) — tap to show
  1. VCA Animal Hospitals – Amoxicillin-clavulanate (veterinary drug handout)
  2. DailyMed – Clavamox Chewable label
  3. FDA – Frequently asked questions about animal drugs