Glory Lily contains the toxic chemical colchicine and is highly poisonous to animals. Ingestion of Glory Lily can cause severe gastrointestinal signs, organ damage (e.g., kidney, liver), respiratory failure, nervous system signs, and even death in pets.

Tea tree oil, also known as melaleuca oil, is an essential oil produced from the Australian tea tree plant (Melaleuca alternifolia). Tea tree oil is available in variable concentrations. Pet products including shampoos that contain less than 1-2% are generally considered non-toxic when used according to labeled directions. Higher concentrations of Tea tree oil is…

Cardiac glycosides are chemicals found naturally in specific plants and used in the development of the cardiac medication digitalis (Digoxin). Overdose of either plant material or digitalis causes 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…

Pyrethrin and pyrethroids are common active ingredients in insecticides and there is a wide margin of safety for these chemicals with proper use. Improper use includes ingestion of pyrethrin/pyrethroids or use of a pyrethrin/pyrethroid product meant for one species upon a different species (e.g. applying dog topical pyrethroid flea drops upon a cat). Clinical signs…

Decongestants reduce nasal stuffiness by constricting the blood vessels in the nose, but with an overdose, decongestants cause severe constriction of major blood vessels resulting in dangerous high blood pressure and stroke. Pseudoephedrine and phenylephrine are decongestants and may be sold as the only ingredient or in combination w/ cold, flu, or allergy medications; the…