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Is Bitter Root toxic to cats?

YES (TOXIC)
Unfortunately, Bitter Root is toxic and potentially harmful to cats. We recommend you keep your feline friends away from this plant. See the table below for more information.
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Additional Names:Dogbane Hemp, Indian Hemp
Scientific Name:Apocynum androsaemifolium
Family:Apocynaceae
Toxic Principles:Cardenolides
Clinical Signs:Diarrhea (possibly with blood), slow heart rate, weakness
If you think your cat may have ingested a poisonous substance, call 888 426 4435 or your local vet
Detailed Write-up
Author:
Alec
Last Updated:
7/13/25

Is Bitter Root Toxic to Cats?

Cats are curious creatures, often exploring their surroundings and nibbling on plants. However, not all plants are safe for cats to consume. One such plant that raises concerns among cat owners is the Bitter Root. The question is, is Bitter Root toxic to cats?

What is Bitter Root?

Bitter Root, also known as Lewisia rediviva, is a perennial herbaceous plant that is native to North America. It is commonly found in arid and rocky areas, and has a fleshy, succulent stem with clusters of pink, red, or white flowers. The plant is known for its medicinal properties and has been used by native tribes to treat various ailments.

What are the Risks to Cats?

The Bitter Root plant contains the toxic compound protoanemonin. Protoanemonin is a naturally occurring compound found in many plants, including buttercups and anemones. When exposed to air or moisture, the compound can break down into a more potent toxin called anemonin. Anemonin can irritate the skin, eyes, and mucous membranes, as well as cause vomiting and diarrhea when ingested.

Cats that come into contact with Bitter Root can experience a range of symptoms. These include:

  • Vomiting
  • Diarrhea
  • Loss of appetite
  • Lethargy
  • Difficulty breathing
  • Seizures

The severity of the symptoms depends on the amount of Bitter Root ingested, as well as the size and health of the cat. Cats with underlying medical conditions, such as liver or kidney disease, may be more susceptible to the effects of the toxin and may require immediate veterinary attention.

What to do if Your Cat Consumes Bitter Root

If you suspect that your cat has consumed Bitter Root, it is important to act quickly. The first step is to remove any remaining plant material from your cat's mouth and ensure that there is no more plant material around your cat. Then, contact your veterinarian immediately.

Your veterinarian will perform a physical exam and may recommend blood tests and imaging to assess your cat's overall health and look for any signs of organ damage. Treatment will depend on the severity of your cat's symptoms, but may include intravenous fluids to prevent dehydration, antiemetics to control vomiting, and supportive care to manage pain and discomfort.

Do not induce vomiting or administer any medications without first consulting your veterinarian, as these can worsen your cat's condition and may cause additional complications.

Preventing Exposure to Bitter Root

The best way to protect your cat from the harmful effects of Bitter Root is to prevent exposure altogether. If you have Bitter Root plants in or around your home, ensure that they are out of reach and inaccessible to your cat.

If you notice any signs of toxicity in your cat, it is important to act quickly and seek veterinary attention immediately. By doing so, you can help prevent complications and ensure that your cat receives the appropriate care and treatment.

Conclusion

Bitter Root can be harmful to cats due to the toxic compound protoanemonin found in the plant. If your cat ingests Bitter Root, they may experience a range of symptoms, including vomiting, diarrhea, and lethargy. It is important to seek veterinary attention immediately if you suspect your cat has come into contact with Bitter Root. The best way to protect your cat from harm is to prevent exposure altogether by keeping any Bitter Root plants out of reach and inaccessible to your cat.

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