Is Blue-green algae Poisonous to Pets?
🔴 Highly toxic — call a vet now · Dogs & cats
Blue-green algae in ponds and lakes can produce toxins that are rapidly fatal. Dogs are often exposed by swimming in or drinking contaminated water.
Warning signs to watch for
- •Vomiting and diarrhea
- •Weakness and stumbling
- •Seizures
- •Liver failure
What to do right now
This is an emergency. Rinse your pet off and go to a vet immediately. Do not wait for symptoms.
ASPCA Poison Control: (888) 426-4435 · Pet Poison Helpline: (855) 764-7661
Frequently asked questions
Is blue-green algae poisonous to dogs and cats?
Blue-green algae in ponds and lakes can produce toxins that are rapidly fatal. Dogs are often exposed by swimming in or drinking contaminated water.
What are the symptoms of blue-green algae poisoning?
Watch for vomiting and diarrhea, weakness and stumbling, seizures, liver failure. Signs can come on quickly or be delayed depending on how much your pet was exposed to.
What should I do if my pet was exposed to blue-green algae?
This is an emergency. Rinse your pet off and go to a vet immediately. Do not wait for symptoms.
Sources: Pet Poison Helpline. This is general guidance, not a diagnosis. In any suspected poisoning, contact your vet or a poison hotline right away.
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