Pothos (Devil's Ivy)

How Much Is Dangerous

Rarely serious; irritation is usually limited to the mouth and does not typically progress to the kind of significant, airway-threatening swelling occasionally seen with more concentrated raphide-containing plants like Dieffenbachia.

Symptoms

• Oral pain and pawing at the mouth, usually appearing promptly after chewing
• Drooling
• Vomiting
• Difficulty swallowing in more significant exposures involving more plant material
• Mild swelling of the lips or tongue, generally less pronounced than with Dieffenbachia

Time to Symptoms

Immediate to within a few minutes of chewing the plant, consistent with the direct-contact mechanism.

First Aid Steps

• Rinse the mouth with water if the cat tolerates it, to dilute and remove residual crystals
• Offer milk or a treat if swallowing seems comfortable, which many cats find soothing
• Contact a veterinarian if drooling or pawing is severe or does not settle within an hour or two, or if any swelling seems to be worsening rather than improving

What Not To Do

• Do not assume commonly-kept, "easy" houseplants like Pothos are completely risk-free just because severe reactions are uncommon — individual cat reactions vary, and supervision around any houseplant remains the more reliable approach than assuming safety based on the plant's general reputation

Veterinary Treatment

Usually supportive care only — most cases resolve without specific medical treatment beyond rinsing and monitoring at home, though persistent or worsening signs should prompt a veterinary visit rather than continued home management.

Toxic Compound

Insoluble calcium oxalate crystals, the same mechanically-irritating raphide mechanism described for Dieffenbachia, though generally producing a milder clinical picture in this species — Pothos is one of the most commonly kept houseplants precisely because it tolerates neglect well, which unfortunately also means it's one of the most commonly available sources of this type of mild-to-moderate plant exposure.