Hypericum / ˌ h aɪ ˈ p iː r ɪ k əm / is a genus of flowering plants in the family Hypericaceae (formerly considered a subfamily of Clusiaceae). In large doses, St John's wort is poisonous to grazing livestock (cattle, sheep, goats, horses). Keep plants toxic to cats away from your furry friends. Comfrey (Symphytum officinale) is sometimes used as an herbal medicine for people, but it can cause liver damage when given to cats. If exposed to visible light, the hypericin undergoes a chemical reaction that changes the charge of its electrons, damaging or destroying the host cell in the process and causing burn-like symptoms. I have found our cats chewing on Graptopetalum and Kalanchoe leaves (and as you know some Kalanchoes can be poisonous to a degree) without any apparent ill effect. If you decide to keep a plant in the house thats poisonous to pets, there are steps you can take to keep it out of reach. Cats have a more sensitive digestive system than dogs and are more vulnerable to certain plant toxins. Keep the plant in a pot suspended from the ceiling. Baby's Breath. English ivy's (Hedera helix) toxins cause vomiting and stomach pain. Typical symptoms include blistering, boils, depression, drooling, open sores and weakness. Hypericin is a substance produced with the primary goal of neutralizing herbivores that may view the plant as potential food. St. John’s wort (Hypericum perforatum) can induce temporary photosensitivity. *Wag! The Klamath Weed is poisonous for both cats and dogs. Because there are so many poisonous plants and herbs, it is best to pay attention to those that are the most toxic and those that are the most common. are deadly to cats. Schefflera (Schefflera spp.) Adam-and-Eve (Arum, Lord-and-Ladies, Wake Robin, Starch ... Blue Nightshade, Soda Apple, Poisonous Nightshade, Felonwort, Devil's Apple, Scarlet Berry, Woody Nightshade, Blue Blindweed) | Scientific Names ... Scientific Names: Hypericum perforatum | Family: Clusiaceae . See a list of plants poisonous to cats. A blooming lily (Lilium spp.) © 2020 Wag Labs, Inc. All rights reserved. St. John’s wort is given by mouth and is used over the counter to treat pain, depression, anxiety, and other conditions. Just because your dog can chew on your houseplant without getting sick does not mean it is safe for your cat. She wouldn't let us give her her medication. Since some small amount is sometimes present, cats should not be fed cassava. Foxglove (Digitalis purpurea) is an extremely dangerous herb for cats as it can cause cardiac arrhythmias, cardiac failure and death. Serious poisoning by plants is very uncommon in the UK. However, because of their curious nature and the fact that they will groom any substance off their coats and ingest it, intoxication is not that uncommon. To this end, the vet may choose to administer either a dosage of hydrogen peroxide to the cat in order to induce vomiting or a dose of activated charcoal to absorb any chemicals still in the stomach. Treatment of St. John's Wort Poisoning in Cats The first order of business will be to prevent the cat from absorbing more hypericin and thereby exacerbating their symptoms. plants can all cause gastrointestinal upset and excessive salivation. In livestock, this plant is poisonous and can cause skin irritation, panting, confusion, anorexia, depression and an abnormal increase in body temperature. Resources: Interestingly, the chemical produces its highest concentrations in cells that are cancerous, making it an effective diagnostic tool in the field of oncology. Some garden plants present a hazard, but the risk of severe poisoning, skin reaction or allergy is generally low. can cause convulsions, heart damage and death. what plants the owner believes to be at fault) as well as the cat's medical history and any prior incidents. Liliaceae lilies include Easter lilies, Asian lilies (Lilium asiatica) and red lilies (Lilium umbellatum). In addition, pregnant cats should not be exposed to barberry (Berberis vulgaris), goldenseal (Hydrastis canadensis), black cohosh (Cimicifuga racemosa) or blue cohosh (Caulophyllum thalictroides). Is St John's wort dangerous? With few exceptions, the toxins in poisonous plants are in all portions of the plant, although some parts of the plant may be more poisonous than other parts.