Are Oxalates (Insoluble) toxic to cats?

Moderate severity

Yes, Oxalates (Insoluble) are toxic to cats. They can cause real illness, so contact your vet if your pet has been exposed.

Symptoms to watch for

Drooling
Oral pain
Pawing at the mouth
Vomiting
Decreased appetite
Swelling of the upper airway
Difficulty breathing

How vets treat it

Rinse the mouth with water or milk to remove crystals; monitor for airway swelling and seek veterinary care if breathing is labored.

Why it's dangerous

Chewing or biting into the plant releases needle-like crystals that cause tissue penetration and irritation to the mouth and gastrointestinal tract.

Toxic compound: Insoluble calcium oxalate crystals

Good to know

Insoluble calcium oxalates have a different mechanism of toxicity than soluble oxalates like rhubarb or star fruit. Airway swelling is very rare.

Sources

Pet Poison Helpline

This page is informational and is not veterinary advice. If your pet has been exposed to something risky, contact your vet or an animal poison control line right away.

The StrawPaw Team · How we prepare our guides

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