Night-blooming jasmine is a toxic plant harmful to humans, cats, and dogs. Every part of night-blooming jasmine is toxic. Ingesting it can cause gastritis, fever, raised pulse, and excess salivation. Smelling it leads to nausea, dizziness, trouble breathing, and headaches. For pets, ingestion causes symptoms like gastrointestinal upset, vomiting, and potential seizures, requiring immediate veterinary care.