Is Chamomile Toxic to Dogs and Cats? (2026)

Anthemis nobilis

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Mild
Mild
Safe

Quick facts

Toxic to dogsYes
Toxic to catsYes
Toxic to horsesNo
Toxic componentSesquiterpene lactones (related to the ragweed/daisy family)
Onset of symptomsWithin a few hours
Indoor / outdooroutdoor

If your pet ate this plant

Both lines are staffed 24/7. A consultation fee applies to each. Do not wait for symptoms to appear before calling.

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Symptoms in dogs

  • Vomiting
  • Diarrhea
  • Allergic skin reaction in sensitive individuals

Symptoms in cats

  • Vomiting
  • Diarrhea
  • Allergic skin reaction in sensitive individuals

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What to do

Usually mild and self-limiting; pets with known ragweed or daisy-family allergies may react more strongly.

Toxic component and mechanism

The toxic component in Chamomile is sesquiterpene lactones (related to the ragweed/daisy family).

What makes this plant different

Chamomile's reputation as a calming herbal tea ingredient doesn't fully extend to pet safety — it belongs to the same plant family as ragweed, so pets with a known ragweed or daisy allergy may react more strongly than the 'mild' classification suggests for an average pet.

Plant identification

Scientific name
Anthemis nobilis
Family
Compositae
Also known as
Chamomile, Manzanilla, Garden Chamomile, Roman Chamomile, True Chamomile
Typically found
outdoor

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The information on this page is for general informational purposes only and is not a substitute for professional veterinary advice. Plant toxicity data is sourced from the ASPCA Toxic and Non-Toxic Plants database. If you believe your pet has ingested a toxic plant, contact your veterinarian or the ASPCA Animal Poison Control Center (888-426-4435) immediately. Do not wait for symptoms to appear.

Last verified: July 2, 2026 · Cross-referenced with ASPCA Animal Poison Control