Are Cane Toads Poisonous to Dogs? Emergency Signs and Care

Name: Are Cane Toads Poisonous to Dogs? Emergency Signs and Care
Creator: Dr. Zubair Khalid

By Dr. Zubair Khalid, DVM, MS, PhD · 2026-10-03

Yes, cane toads are poisonous to dogs, and exposure is a minutes-matter emergency. When a dog licks, mouths, or bites a cane toad, the toad releases a milky toxin from glands on its skin, and signs can appear almost immediately [1]. Most dogs survive with fast treatment, but the first ten minutes at home matter as much as anything the veterinarian does afterward [2].

This article is educational and is not a substitute for veterinary diagnosis or treatment.

Quick Answer

A cane toad is highly toxic to dogs. The toxin comes from glands on the toad's skin, and a dog only has to lick or mouth the toad to be poisoned [3][4].
Signs start almost immediately, most often heavy drooling, gagging, vomiting, and red gums [2][1].
Rinse your dog's mouth right now with a gentle stream of water from a hose or sink, pointing the water out of the mouth, not down the throat. Wipe the gums and lips with a wet cloth. Do not let your dog swallow the rinse water.
Call a veterinarian immediately, or the ASPCA Animal Poison Control Center at (888) 426-4435 or Pet Poison Helpline at (855) 764-7661.
Do not induce vomiting unless a veterinarian tells you to.

Is Cane Toad Poisonous to Dogs?

Yes. Cane toads (Rhinella marina, formerly Bufo marinus) carry a defensive toxin strong enough to kill a dog in rare cases [3]. The toad does not have to bite or attack. It releases the toxin when it feels threatened, which can happen simply because your dog came too close, sniffed it, or licked it [3].

Cane toads are native to Central and South America but have spread to warm parts of the United States, including Florida, Hawaii, Texas, and Louisiana [5]. They are an invasive species and are most common in Florida [3]. Adults reach 6 to 9 inches long and can be gray, brown, or red, with bony ridges above the nostrils and eyes [5]. They are most active at dawn, dusk, and after rainstorms, and their breeding season runs from March to September [3].

Any dog can be poisoned, but small dogs are overrepresented in emergency cases. In one review of 90 dogs treated for suspected cane toad poisoning, small breeds made up 76% of cases, and Jack Russell, Silky, and Fox Terriers were the most common breeds seen [2]. That pattern likely reflects both size and terrier-style hunting behavior.

Which Parts of the Toad Are Toxic?

The toxin is produced by large glands behind the eyes and by smaller glands scattered across the skin [4]. That means the whole surface of the toad is a hazard, not just one spot. If your dog picks the toad up, the toxin contacts the gums, tongue, and lips directly.

Are Cane Toads Poisonous to Dogs When Dead?

Yes. A dead cane toad still carries toxin in its skin glands. Dogs have been poisoned after mouthing toads that were already dead, and the toxin does not simply disappear when the animal stops moving. If you find a dead cane toad in your yard, treat it as hazardous and keep your dog away from it.

Are Dried Cane Toads Poisonous to Dogs?

Yes. Drying does not make a cane toad safe. A dried or desiccated toad on a driveway, patio, or sidewalk can still hold toxin in its skin, and a dog that picks it up can still be poisoned. The same caution applies to toad carcasses that have been sitting in the sun.

Is Cane Toad Poop Poisonous to Dogs?

The main danger is the toad itself, not its waste. The toxin is produced in skin glands, not in the digestive tract, so the risk from droppings is low compared with licking or mouthing the toad. Still, do not encourage your dog to investigate toad droppings, and wash your hands after handling anything a toad has touched.

Are Small Cane Toads Poisonous to Dogs?

Yes. Young cane toads and toadlets carry toxin too. Laboratory work on cane toad developmental stages found that extracts from eggs, hatchlings, tadpoles, and young toadlets were toxic to canine kidney cells in culture, with early life stages showing high toxicity [6]. After normalizing for concentration, extracts from 2 to 3 month old toadlets appeared less toxic than pre-metamorphic and early metamorphic stages, but they were still not harmless [6]. In plain terms, a small toad is not a safe toad.

What Happens If a Dog Eats a Cane Toad?

The toxin is called bufotoxin. It acts on the heart and nervous system and can also cause hallucinations [3]. The severity of poisoning depends on how much toxin your dog absorbed and how much contact occurred [3][5].

When a dog bites or mouths a toad, the toxin hits the gums and mouth lining fast. That is why drooling and gagging are often the first things you see. From there, the toxin can affect the heart rhythm, breathing, and brain. In severe cases, veterinarians see high potassium levels in the blood and dangerous heart arrhythmias [4].

Signs of Cane Toad Poisoning and How Fast They Appear

Signs are evident almost immediately after oral exposure [1]. In a review of 90 dogs with suspected cane toad poisoning, the most common signs were increased salivation in 78% of cases and red oral mucous membranes in 63% of cases. Seizures occurred in 31% of cases [2].

Watch for:

Heavy drooling or foaming at the mouth [4][2]
Gagging or retching [4]
Vomiting [4]
Red, irritated gums and mouth [2]
Pawing at the mouth or head shaking
Weakness or wobbliness [4]
Trouble breathing or blue-tinged gums [4]
Seizures [4][2]
Collapse or an irregular heartbeat [4]

Timeline matters. Mouth signs such as drooling and gagging usually show up within minutes. Neurologic signs such as seizures can follow quickly in serious exposures. If your dog ate a toad and you are not sure how much contact happened, treat it as an emergency anyway. A dog that seems fine at minute five can worsen by minute fifteen.

For a broader look at what to do when a dog mouths an amphibian, see Dog Ate a Toad: Signs of Toad Poisoning and Emergency First Aid. If you are unsure whether the animal was a toad or a frog, My Dog Ate a Frog: Is It Poisonous? walks through the differences.

What to Do Right Now

Act first, then call. The mouth rinse is the single most useful thing you can do at home, and it needs to happen in the first minutes.

Rinse your dog's mouth with water. Use a gentle stream from a hose or a sink. Point the water so it flows out of the mouth, not down the throat. Tilt your dog's head down slightly so the water drains out.
Wipe the gums, lips, and inside of the cheeks with a wet cloth to remove toxin residue.
Do not let your dog swallow the rinse water. Swallowed toxin keeps causing problems.
Do not induce vomiting unless a veterinarian tells you to. Vomiting does not remove toxin that has already been absorbed through the mouth, and it can make breathing problems worse.
Call for help. Reach your veterinarian, the ASPCA Animal Poison Control Center at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661. These lines are staffed around the clock and can guide you while you drive.
Go to the nearest emergency clinic. Do not wait for signs to get worse before you leave.

If your dog is seizuring, do not put your hands in its mouth. Keep it from falling or hitting furniture, keep the area quiet, and get moving.

Veterinary Treatment for Cane Toad Poisoning

Treatment is supportive and aimed at the specific problems your dog has [4]. Your veterinarian will likely start with a careful mouth flush and may give medications to control drooling, vomiting, and seizures. Intravenous fluids help support circulation and help the body clear toxin.

If the heart rhythm is abnormal or blood potassium is dangerously high, treatment becomes more involved. Digoxin-specific Fab, an antidote used for severe digoxin toxicosis, can be considered for severe arrhythmias or high potassium that does not respond to supportive care [4]. This is a hospital-level decision, and it is one more reason not to delay care.

Your veterinarian will calculate any drug doses from your dog's weight and current health. There is no safe home dose to give on your own.

Outlook After Cane Toad Exposure

The outlook is better than most owners fear, as long as treatment starts early. In the 90-dog review, 96% of dogs survived [2]. A separate review of 208 dogs treated for Colorado River toad exposure, a toad with a similar clinical syndrome and treatment approach, reported a 99% survival rate to discharge [7]. Those numbers come from dogs that reached veterinary care, so they reflect what happens with treatment, not what happens without it.

Severe poisoning is possible. Without early and appropriate treatment, oral exposure to cane toad secretions can carry a high fatality rate [1]. The difference between a good outcome and a bad one is usually time.

Prevention and Safer Alternatives

Prevention is mostly about awareness and yard management.

Watch your dog closely on walks, especially near ponds, gardens, lawns, and woods where toads live [5].
Stay away from bodies of water at dawn, dusk, and after rain, when toads are most active [3].
Keep your lawn maintained and remove debris that gives toads cover [3].
Check your yard after rainstorms before letting your dog out.
Never let your dog investigate a toad, dead or alive.
If you handle a toad, wash your hands before touching your dog.
Teach a solid "leave it" cue and reward your dog for walking away from small moving animals.

If your dog has a habit of grabbing things outdoors, other hazards are worth reviewing too. Plants Poisonous To Dogs covers common yard and house plants, and Are Tarantulas Poisonous to Dogs? Understanding the Risks explains what to do about another outdoor creature dogs sometimes pick up.

Limitations and When to Contact a Veterinarian

This article cannot tell you how much toxin your dog absorbed or how its heart is responding. Only a veterinarian who examines your dog can do that. Individual cases need a veterinarian, and phone guidance from a poison control line does not replace an exam.

Contact a veterinarian the same day if your dog had brief contact with a toad, you rinsed the mouth, and your dog now seems completely normal. A same-day check is still reasonable because some effects can be delayed or subtle.

Go to an emergency clinic now if you see any of these:

Drooling, foaming, or gagging that continues after rinsing
Vomiting, especially repeated vomiting
Red or irritated gums
Wobbliness, weakness, or trouble standing
Fast, noisy, or labored breathing
Blue or gray tinge to the gums or tongue
Seizures, twitching, or collapse
A heartbeat that feels irregular or very fast

Do not drive to a regular appointment if your dog is showing neurologic or breathing signs. Go to the nearest emergency hospital.

Frequently Asked Questions

Can a dog survive cane toad poisoning?

Yes, most dogs survive with prompt treatment. In one review of 90 dogs with suspected cane toad poisoning, 96% survived [2]. Survival depends heavily on how fast the mouth was rinsed and how quickly veterinary care started.

How long after licking a cane toad will my dog show signs?

Signs usually appear almost immediately after oral exposure [1]. Drooling and gagging are often the first things owners notice, and they can show up within minutes of contact.

Should I make my dog throw up after eating a cane toad?

No, do not induce vomiting unless a veterinarian tells you to. The toxin is absorbed through the mouth and gums, so vomiting does not remove it, and it can worsen breathing problems in a dog that is already struggling.

Can my dog get sick from just sniffing a cane toad?

Sniffing alone is unlikely to cause poisoning because the toxin has to contact the mouth or mucous membranes. The risk rises sharply if your dog licks, mouths, or picks up the toad, which is when the toxin reaches the gums and mouth lining [4].

Do I need to worry about cane toads in my yard year round?

Cane toads are most active at dawn, dusk, and after rainstorms, and their breeding season runs from March to September [3]. In warm climates they can be present much of the year, so check your yard regularly and keep your dog supervised outdoors.

References

Toad Intoxication in the Dog by Rhinella marina : The Clinical Syndrome and Current Treatment Recommendations. Journal of the American Animal Hospital Association, 2016.
A retrospective report of 90 dogs with suspected cane toad (Bufo marinus) toxicity. Australian veterinary journal, 2004.
What Happens If My Dog Is Poisoned by. Pet Poison Helpline.
Toad Poisoning in Dogs and Cats - Toxicology. Merck Veterinary Manual.
Symptoms of Cane Toad Poisoning in. Pet Poison Helpline.
Cane toad toxicity: an assessment of extracts from early developmental stages and adult tissues using MDCK cell culture. Toxicon : official journal of the International Society on Toxinology, 2009.
Clinical review of Colorado river toad (Incilius alvarius) intoxication in dogs in Arizona: clinical signs, treatments, and outcomes. Journal of the American Veterinary Medical Association, 2026.