Toxic to dogs · Medications

Is Pimobendan toxic to dogs?

High severity

Yes, Pimobendan is highly toxic to dogs. Exposure can cause serious illness and needs prompt veterinary attention.

Symptoms to watch for

  • inappetance
  • lethargy
  • elevated heart rate
  • collapse
  • low blood pressure
  • weakness

How vets treat it

Accidental ingestion should be treated immediately by a veterinarian to manage cardiovascular effects.

Why it's dangerous

It acts as a calcium sensitizer and phosphodiesterase III inhibitor, causing excessive heart contraction and significant vasodilation when ingested in toxic amounts.

Toxic compound: Pimobendan

Good to know

Commonly found in chewable tablet forms (1.25, 2.5, and 5 mg) which increases the risk of accidental over-ingestion by pets.

Sources

This page is informational and is not veterinary advice. If your pet has been exposed to something risky, contact your vet or an animal poison control line right away.

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