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Toxic substances: dog and cat
A professional reference for veterinary specialists. It does not replace clinical judgement.
Foods, plants, household chemicals, pesticides and objects that poison dogs and cats. Medicines that are toxic are in their own group and on the species safety pages:
Toxic medicines → Species safety: cats → Species safety: dogs →
Nothing in this list. Try the medicines search at the top of the page.
Foods
- Chocolate and cocoa theobromine, caffeine Dog: ToxicCat: Toxic substance page
- Coffee and caffeine caffeine tablets, energy drinks Dog: ToxicCat: Toxic
- Grapes and raisins sultanas, currants, Vitis vinifera Dog: ToxicCat: Little data
- Onion, garlic, leek and chives (Allium) onion powder, garlic powder Dog: ToxicCat: Especially sensitive
- Xylitol (sweetener) sugar-free gum, birch sugar Dog: ToxicCat: Little data substance page
- Macadamia nuts Macadamia Dog: ToxicCat: Little data
- Alcohol (ethanol) alcoholic drinks, ethanol Dog: ToxicCat: Toxic
- Raw yeast bread dough unbaked bread or pizza dough Dog: ToxicCat: Toxic
- Mouldy food and mouldy walnuts (tremorgenic mycotoxins) penitrem A, roquefortine, compost, garbage Dog: ToxicCat: Little data
- Salt (sodium chloride) and ice-melt salts table salt, rock salt, de-icer Dog: ToxicCat: Toxic
Plants
- Lilies (Lilium) and daylilies (Hemerocallis) Easter lily, tiger lily, Asiatic lily, daylily Dog: Mainly mild signsCat: Especially sensitive
- Rhododendron and azalea Rhododendron Dog: ToxicCat: Toxic
- Oleander (Nerium oleander) Nerium oleander Dog: ToxicCat: Toxic
- Yew (Taxus) Taxus baccata Dog: ToxicCat: Toxic
- Autumn crocus (Colchicum autumnale) meadow saffron, Colchicum Dog: ToxicCat: Especially sensitive
- Sago palm (Cycas revoluta) cycad, Cycas Dog: Especially sensitiveCat: Toxic
- Dieffenbachia dumb cane Dog: ToxicCat: Especially sensitive
Household chemicals
- Ethylene glycol (antifreeze) antifreeze, coolant Dog: ToxicCat: Especially sensitive
- Essential oils (tea tree oil) melaleuca oil, liquid potpourri Dog: ToxicCat: Especially sensitive substance page
- Nicotine and e-cigarette liquid cigarettes, butts, nicotine gum, patches, vape liquid Dog: ToxicCat: Toxic
- Cannabis (THC) marijuana, edibles Dog: ToxicCat: Toxic
- Bleach (sodium hypochlorite) chlorine bleach Dog: ToxicCat: Toxic
- Mothballs (naphthalene, paradichlorobenzene) naphthalene, paradichlorobenzene (PDB) Dog: ToxicCat: Toxic
Pesticides and rodenticides
- Anticoagulant rodenticides warfarin, bromadiolone, brodifacoum, rat poison Dog: ToxicCat: Toxic
- Bromethalin (rodenticide) bromethalin rat bait Dog: ToxicCat: Especially sensitive
- Cholecalciferol rodenticides (vitamin D3) vitamin D3 rat bait Dog: ToxicCat: Toxic substance page
- Zinc phosphide (rodenticide) phosphine-releasing bait Dog: ToxicCat: Little data
- Metaldehyde (slug and snail bait) slug pellets, snail bait Dog: ToxicCat: Toxic
- Organophosphate and carbamate insecticides diazinon, chlorpyrifos, carbaryl, propoxur, garden insecticides Dog: ToxicCat: Toxic
Metals and objects
- Lead lead paint, shot, fishing weights Dog: ToxicCat: Toxic
- Zinc (coins and zinc objects) US pennies minted after 1982, zinc nuts and bolts Dog: ToxicCat: Toxic
- Button (disc) batteries lithium coin cells, alkaline batteries Dog: ToxicCat: Toxic
Professional reference for veterinary professionals. Not advertising and not a substitute for the product label/SPC.
For veterinary professionals only. It does not replace clinical judgement or the product label; check the dose in the official label (SPC). vetman is not liable for harm caused by using this information.
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This reference is still growing. Missing a product? Let us know. · Report an error or request an addition · Updated: 22 Oct 2026