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Is foxglove toxic to dogs? Yes: highly toxic

Highly toxic. Foxglove contains heart poisons that can cause vomiting, a dangerous heartbeat and heart failure.

If your dog ate or touched this, call your vet or a pet poison line now

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Foxglove and dogs: key facts

Verdict
Toxic · Emergency: get help now
What it can do
Vomiting, diarrhea, sometimes bloody, belly pain, weakness and slow or irregular heartbeat. All 6
How fast
Often within 2 hours
What to do now
Call your vet or a pet poison line now. All steps
Sources
ASPCA Animal Poison Control, Pet Poison Helpline, Merck Veterinary Manual. Reviewed 9 October 2026.

What should I do if my dog ate foxglove?

  1. Call your vet or a pet poison line now.
  2. Take any plant pieces away and rinse your dog's mouth with water.
  3. Bring a piece of the plant in a bag, or a photo, to help identify it.

Don't

  • Don't make your dog vomit unless a vet tells you to.

Symptoms to watch for

  • Vomiting
  • Diarrhea, sometimes bloody
  • Belly pain
  • Weakness
  • Slow or irregular heartbeat
  • Tremors or seizures

When signs appear: Often within 2 hours

Why

Foxglove (Digitalis) contains cardiac glycosides, natural chemicals that affect the heart.

Sources

Guide reviewed 9 October 2026. Page updated 7 November 2026.

General information from the sources above, not a diagnosis. When in doubt, call your vet.