Heart & blood pressure Dogs

Vetmedin (Pimobendan) for dogs

Treats congestive heart failure in dogs, usually from mitral valve disease or dilated cardiomyopathy. [1]

Last reviewed: October 2026 · 2 sources · see sources

Quick answerVetmedin (pimobendan) is a prescription medicine for dogs. It helps the heart squeeze more strongly and widens blood vessels so the heart works less hard. The most common side effects: low appetite, diarrhea, tiredness and breathing changes.

Key facts

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

What it's used for

Treats congestive heart failure in dogs, usually from mitral valve disease or dilated cardiomyopathy. [1]

How it works

It helps the heart squeeze more strongly and widens blood vessels so the heart works less hard. [1]

Side effects and cautions

Common side effects: Low appetite, diarrhea, tiredness and breathing changes. [1]

Use with care: Not for dogs with certain heart conditions such as aortic stenosis. Use in cats is off label. [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.

Vetmedin FAQ

What is Vetmedin used for in dogs?

Treats congestive heart failure in dogs, usually from mitral valve disease or dilated cardiomyopathy.

What are the side effects of Vetmedin?

Low appetite, diarrhea, tiredness and breathing changes.

Does Vetmedin need a prescription?

Yes. It needs a prescription from a veterinarian.

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