PET SAFETY ANSWER · CITED TO ASPCA
Is Dieffenbachia safe for cats?
Why it's toxic
Toxic principles: Insoluble calcium oxalates, proteolytic enzyme
Clinical signs in cats: Oral irritation, intense burning and irritation of mouth , tongue and lips, excessive drooling, vomiting, difficulty swallowing
Severity rating: moderate
Source
Classification per the ASPCA Toxic and Non-Toxic Plants database entry for Dieffenbachia. Verified 2026-05-28. We update these answers when ASPCA changes the classification.