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13 Household Plants You May Be Surprised to Learn Are Toxic to Cats
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Rhododendrons

Rhododendrons contain grayanotoxins and are highly toxic to pets. If only 0.2 percent of an animal's bodyweight in poison is ingested, the grayanotoxin can disrupt a cat's odium channels — which affect the skeletal and cardiac muscles — according to the Pet Poison Hotline.

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