It mainly exists in the juice of leaves, stems and wounds of oleander, and there are few flowers. Only eating the above substances by mistake will lead to poisoning, which will cause nausea, vomiting, diarrhea and even death. If you smell it for a long time, it will make people sleepy and decrease their intelligence.
Nerium indicum is an ornamental, treatable and poisonous flower, but don't worry too much. Generally, oral administration of more than a dozen leaves can cause toxic reactions, and the leaves and stems of oleander are very bitter.
Even children who are not sensible will not eat it, and all the poisoning cases found so far are caused by improper medication.