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Entry 58Filed under Breeding

Are Toads Poisonous to Dogs and Cats? Which Species Are Dangerous and What to Do

Cane toads and Colorado River toads can seriously poison pets. Here is how to recognize them, spot the signs, rinse safely and prevent exposure.
4-minute read By Animalso Team
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Yes, some toads can poison a dog or cat, and a few can kill one quickly. The worst offenders in the United States are the cane toad (giant marine toad) and the Colorado River toad (Sonoran Desert toad). Most other toad encounters cause drooling and a bad taste, but you can’t reliably tell the difference in the moment. If your pet mouths a toad where either species lives, rinse its mouth right away and get veterinary help at once.

Which toads are the real concern?

Poison Control lists Bufo toads in southern Arizona, New Mexico, California and Texas, plus Florida and Hawaii. Common names include Colorado River toad, giant marine toad, Sonoran Desert toad and cane toad. Poison glands sit on the back and behind the eyes. Toxic compounds are present at every life stage, eggs included.

The Merck Veterinary Manual names two species as the most concerning for severe poisoning in US pets: the large marine/cane toad (Rhinella marina) and the Colorado River toad (Incilius alvarius). It adds that in regions with less toxic toads, little treatment may be needed. Location matters.

Cane toad vs. Colorado River toad

Cane toad Colorado River toad
Glands behind the eyes (ASPCA) Large, triangular; no ridges or crests on top of the head Oval; visible glands on the hind legs
Where (ASPCA, simplified) Florida, southern Texas, Hawaii Southern Arizona, New Mexico, California

These are broad summaries, and ranges can shift. Don’t try to identify a toad from memory or a vague description while your pet is in distress. Treat any mouthing as an emergency if you live in these areas.

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Florida: telling invasives from natives

Florida Fish and Wildlife Conservation Commission (FWC) reports cane toads in central and south Florida, generally south of the I-4 corridor. Adults reach 6–9 inches. Native southern toads are 3–4 inches, with cranial crests and smaller oval glands. FWC warns homeowners to identify carefully, because southern toads are beneficial native wildlife.

What toad toxin does

According to Poison Control, toad secretions contain cardioactive steroids, catecholamines and tryptamines. Exposure can happen through ingestion, the eyes or nose, and even skin absorption. Children and pets are at risk because they handle or mouth amphibians.

Signs in dogs and cats

  • Early: heavy drooling or frothing, red gums, mouth pain, gagging, retching, vomiting. VCA says signs can start within minutes.
  • Progressing: stumbling, weakness, tremors, blue-tinged gums or skin, difficulty breathing.
  • Severe: seizures, abnormal heart rhythm, high blood potassium and death without prompt treatment (Merck, VCA).

Pets don’t have to catch a toad. VCA notes exposure can come from contaminated pet bowls or from pond water containing toad eggs.

Signs in people

Poison Control lists numbness of the mouth and throat and potentially serious effects on heart rhythm and blood pressure. Eye or nose exposure can cause pain, irritation or tissue damage.

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What to do if your pet mouths a toad

  1. Get the pet away from the toad and, if you can do so safely, note its size and look.
  2. Rinse the mouth. If your pet is conscious, ASPCA advises running water for five to ten minutes with the muzzle pointed down so water flows out of the mouth instead of down the throat. Merck warns that water or saliva carrying toxin shouldn’t be inhaled. Florida FWC also says to wipe the gums and tongue with a towel.
  3. Don’t induce vomiting unless a veterinarian or the ASPCA Animal Poison Control Center tells you to. Merck notes neurological signs can start rapidly.
  4. Call a veterinarian or animal poison-control service right away and go in. Where cane toads or Colorado River toads live, ASPCA recommends immediate veterinary care after rinsing. FWC warns cane toad exposure can turn fatal quickly without treatment.

Treatment is mainly supportive, and severe cases may need intensive care. Merck states: “A specific antidote for toad toxins is not available.” The USGS Nonindigenous Aquatic Species database, citing Reeves (2004), gives a 96% survival figure with veterinary intervention. That is a secondary-source number and shouldn’t be taken as a guarantee. Outcomes depend on species, dose and speed of care.

If a person is exposed

Human and pet first aid differ. For people, Poison Control says water decontamination (washing, rinsing, flushing or eye irrigation) is the only home treatment. Don’t induce vomiting. Contact webPOISONCONTROL or call 1-800-222-1222 in the US. Poison Control notes an antidote exists only for the cardioactive-steroid portion of Bufo secretions, so medical advice matters.

Prevention

  • Keep food and water indoors. ASPCA advises against leaving bowls outside where toads can reach them. If bowls must stay out, raise them and change the water often. FWC suggests bringing bowls in at night.
  • Watch the high-risk times. Toads are most active early in the morning and at night, especially in summer after rain.
  • Supervise outdoor trips at those times, and leash dogs in toad territory.
  • Reduce shelter. FWC recommends removing hiding places from the yard.
  • Check ponds and standing water for eggs.

Removing toads: rules are local

In Florida, FWC advises eye and skin protection and latex, rubber or nitrile gloves when handling a confirmed cane toad. Captured cane toads may not be relocated and released, and homeowners can use a wildlife trapper. Misidentifying a native southern toad harms useful wildlife. Other states have different rules, so check with your local wildlife agency before removing anything.

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