Understand how kalanchoe poisoning affects cats, what signs to watch for, and what steps to take if you suspect your cat has been exposed.
Quick Answer
Kalanchoe poisoning in cats is a potentially serious condition that requires prompt veterinary attention. Plants include foxglove, oleander, lily of the valley, and kalanchoe. All parts are toxic, even dried. If you suspect poisoning, contact a veterinarian or animal poison-control service immediately.
Before using any tool, contact a veterinary professional if your cat may have been exposed.
- US: ASPCA Animal Poison Control (888-426-4435) or Pet Poison Helpline (855-764-7661)
- UK: Animal PoisonLine (01202 509000) or your nearest veterinary emergency clinic
- Canada: ASPCA Animal Poison Control (888-426-4435) or Pet Poison Helpline (855-764-7661)
- AU: Animal Emergency Centre or your regular vet
- EU: Contact your nearest veterinary emergency service
TOXICITY CHECKER
Check whether a substance may be harmful to your pet and get prioritized safety steps.
This tool provides general safety information and does not replace veterinary advice in an emergency.
Safety Verdict
Toxic. Cardiac glycosides inhibit the sodium-potassium ATPase pump, increasing intracellular calcium. This increases cardiac contraction force but disrupts electrical conduction, causing dangerous arrhythmias.
Plants include foxglove, oleander, lily of the valley, and kalanchoe. All parts are toxic, even dried.
What Is Kalanchoe?
Kalanchoe contains cardiac glycosides including bufadienolides. All parts are toxic, and ingestion can cause vomiting, diarrhea, and dangerous cardiac arrhythmias.
How Kalanchoe Poisoning Affects Cats
The toxic principle in kalanchoe is cardiac glycosides (digoxin-like compounds). Cardiac glycosides inhibit the sodium-potassium ATPase pump, increasing intracellular calcium. This increases cardiac contraction force but disrupts electrical conduction, causing dangerous arrhythmias.
The severity of kalanchoe poisoning in cats depends on several factors:
- The amount consumed or the extent of exposure
- The route of exposure (ingestion, skin contact, inhalation)
- The cat's body weight, age, and overall health
- Whether the substance was in concentrated or diluted form
- How quickly veterinary treatment is initiated
Life-threatening. Can cause fatal cardiac arrhythmias.
Signs of Kalanchoe Poisoning in Cats
Common signs include:
- Vomiting
- Diarrhea
- Drooling
- Loss of appetite
- Lethargy and weakness
- Irregular heart rate
- Collapse
- Death in severe cases
Timeline: Signs typically develop within a few hours.
Emergency signs requiring immediate veterinary attention:
- Irregular heart rate
- Collapse
- Difficulty breathing
- Persistent vomiting
- Pale gums
The absence of signs does not necessarily rule out risk, particularly with substances that have delayed effects. Veterinary evaluation is recommended even if your cat appears normal after known exposure.
What to Do If You Suspect Poisoning
- Contact a veterinarian or animal poison-control service immediately.
- Remove any remaining substance from your cat's reach.
- Do not induce vomiting unless instructed by a veterinarian.
- Do not give food, milk, charcoal, or home remedies.
- Bring the substance, plant, or packaging for identification.
Have this information ready:
- Your cat's age, weight, breed, and any medical conditions
- The specific product or plant name and its ingredients if known
- Estimated amount consumed and time of exposure
- Current symptoms and when they started
- Product packaging, plant photos, or remaining material
Any ingestion should be treated as an emergency. Do not wait for signs.
When to Contact a Veterinarian
Contact a veterinarian or animal poison-control service immediately if you suspect kalanchoe poisoning. Plants include foxglove, oleander, lily of the valley, and kalanchoe. All parts are toxic, even dried.
Emergency signs that require urgent veterinary attention:
- Irregular heart rate
- Collapse
- Difficulty breathing
- Persistent vomiting
- Pale gums
Non-urgent follow-up: Any ingestion should be treated as an emergency. Do not wait for signs.
FAQ
Which plants contain cardiac glycosides?
Foxglove, oleander, lily of the valley, and kalanchoe all contain cardiac glycosides. All parts are toxic.
How much is toxic to a cat?
Even a small amount can be dangerous. A single oleander leaf may contain enough to cause toxicity. Any ingestion is an emergency.
Can cardiac glycoside poisoning be treated?
Treatment may include activated charcoal, IV fluids, anti-arrhythmic medications, and monitoring. Prognosis depends on dose and speed of treatment.
TOXICITY CHECKER
Concerned about another plant, food, medication, or household item around your cat? Get general, species-aware safety information to help you decide your next step.
This tool provides general safety information and does not replace veterinary advice.
Sources
- ASPCA Animal Poison Control, "Toxic and Non-Toxic Plants List," https://www.aspca.org
- Merck Veterinary Manual, "Cardiac Glycoside Toxicosis," https://www.merckvetmanual.com
- Pet Poison Helpline, "Cardiac Glycoside Plants," https://www.petpoisonhelpline.com
Disclaimer
This article and the PawAI Toxicity Checker tool provide general safety information and do not replace examination, diagnosis, or treatment by a licensed veterinarian. If your cat may have ingested a toxic substance, contact a veterinarian, emergency clinic, or animal poison control immediately.