Ingestion of Cannabis sativa by companion animals can result
in depression of the central nervous system and incoordination, as well as vomiting, diarrhea, drooling, increased heart rate,
and even seizures and coma.
All parts of Cycas Revoluta are poisonous, but the seeds or “nuts”
contain the largest amount of toxin. The ingestion of just one or two seeds can result in very serious effects, which include
vomiting, diarrhea, depression, seizures and liver failure.
Members of the Lilium spp. are considered to be highly
toxic to cats. While the poisonous component has not yet been identified, it is clear that with even ingestions of very small
amounts of the plant, severe kidney damage could result.
The bulb portions of Tulipa/Narcissus spp. contain toxins that can cause intense
gastrointestinal irritation, drooling, loss of appetite, depression of the central nervous system, convulsions and cardiac
Members of the Rhododenron spp. contain substances known as grayantoxins,
which can produce vomiting, drooling, diarrhea, weakness and depression of the central nervous system in animals. Severe azalea
poisoning could ultimately lead to coma and death from cardiovascular collapse.
All parts of Nerium oleander are considered to be toxic, as they contain cardiac
glycosides that have the potential to cause serious effects—including gastrointestinal tract irritation, abnormal heart
function, hypothermia and even death.
The poisonous principle in Ricinus communis is ricin, a highly toxic protein
that can produce severe abdominal pain, drooling, vomiting, diarrhea, excessive thirst, weakness and loss of appetite. Severe
cases of poisoning can result in dehydration, muscle twitching, tremors, seizures, coma and death.
Cylamen species contain cyclamine, but the highest concentration of this toxic component is typically
located in the root portion of the plant. If consumed, Cylamen can produce significant gastrointestinal irritation,
including intense vomiting. Fatalities have also been reported in some cases.
This plant contains components that can produce gastrointestinal irritation, as well as
those that are toxic to the heart, and can seriously affect cardiac rhythm and rate.
Taxus spp. contains
a toxic component known as taxine, which causes central nervous system effects such as trembling, incoordination, and difficulty
breathing. It can also cause significant gastrointestinal irritation and cardiac failure, which can result in death.