Is monstera toxic to dogs or cats?
Also known as: Swiss cheese plant
Oxalate crystals: painful mouth, drooling, vomiting.
Same irritation for cats that chew the leaves.
The Instagram-favorite monstera carries the same insoluble oxalate crystals as pothos and philodendron. A chewed leaf means a painful mouth and drool, not organ damage. Offer water, watch, and call the vet if signs do not settle within a few hours.
Signs to watch for
- Mouth irritation
- Drooling
- Vomiting
Sources: ASPCA toxic and non-toxic plant list, Pet Poison Helpline. Verdicts are conservative by design: where evidence is thin we choose the stricter rating.
This is general educational information, not veterinary advice. When in doubt about your own pet, ask your veterinarian.
If your pet just ate something risky, act now: call your vet, ASPCA Animal Poison Control at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661 (consultation fees may apply).