Cardiac Glycosides

Cardiac Glycosides

plants

Alternate names

digoxin, kalanchoe, lily of the valley, Convallaria, oleander, Nerium, foxglove, digitalis, Star of Bethlehem, Ornithogalum, dogbane, Apocynum, desert rose, Adenium

Toxicity to pets

Cardiac glycosides are found as both natural flower/plant sources and as medications used in both human and veterinary medicine (e.g., digoxin, digitalis). Cardiac glycoside containing-plants have natural toxins specifically called cardenolides or bufadienolides. These poisons are called cardiac glycoside toxins, and they interfere directly with electrolyte balance within the heart muscle. The following plants are known to contain glycosides (please see specific plant for more information):

The level of poisoning – when either the plant form or medication form are ingested – varies with the particular plant, part of the plant, or milligram strength of the medication consumed. Clinical signs of cardiac glycoside poisoning include cardiovascular signs (e.g., abnormal heart rhythm and rate), electrolyte abnormalities (e.g., a life-threatening high potassium level), gastrointestinal signs (e.g., nausea, drooling, vomiting, etc.), or central nervous system signs (e.g., dilated pupils, tremors, seizures). In severe cases, an expensive antidote, digoxin-specific Fab fragments, can be used for severe, life-threatening cases.

Foxglove

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    Disclaimer

    The content of this page is not veterinary advice. A number of factors (amount of substance ingested, size of the animal, allergies, etc.) determine what is toxic to a particular pet. If you think your pet has eaten something potentially toxic, call Pet Poison Helpline or seek immediate veterinary treatment.