Common Household Items That Are Toxic to Pets

Grapes and raisins are well-established as toxic to dogs, and the exact compound responsible still isn't fully identified — which makes them particularly unpredictable. Even a small serving has caused acute kidney failure in some dogs. Cats appear less likely to eat them, but the same caution applies. Keep them off counters and out of low fruit bowls.

Xylitol is found in sugar-free gum, certain peanut butters, some baked goods, oral care products, and vitamins. In dogs, it triggers a rapid release of insulin, causing dangerous drops in blood sugar (hypoglycemia), and at higher doses, liver failure. Always read ingredient labels before sharing any human food with your dog — "sugar-free" is a red flag worth checking.

Common over-the-counter pain relievers — including ibuprofen, acetaminophen, and naproxen — are highly toxic to both dogs and cats. Acetaminophen is especially dangerous for cats, damaging red blood cells and the liver even in very small doses. Prescription medications left on nightstands or dropped on floors are a frequent source of accidental ingestion. Never give a pet any human medication without explicit veterinary guidance.

Many popular indoor and garden plants are poisonous to pets. Lilies (especially true lilies like Easter and tiger lilies) are severely toxic to cats — even small amounts can cause kidney failure. Sago palm is dangerous to dogs and cats alike, affecting the liver. Other plants to be cautious about include pothos, dieffenbachia, azaleas, and oleander. Before bringing a new plant home, cross-reference it with ASPCA's plant toxicity list.

Bleach, ammonia-based cleaners, phenol-containing disinfectants (found in some pine-scented products), and concentrated surface sprays can cause chemical burns to the mouth, respiratory irritation, and systemic toxicity if ingested or heavily inhaled. Cats are particularly vulnerable because they groom residue off their paws. Allow surfaces to fully dry and ventilate rooms before letting pets back in after cleaning.

Onions, garlic, leeks, shallots, and chives — raw, cooked, or powdered — contain compounds that damage red blood cells in both dogs and cats, potentially leading to hemolytic anemia. Garlic is considered more potent per gram than onion. Because these ingredients appear in so many cooked dishes, table scraps can be a hidden source of exposure. This is especially relevant for cats and dogs who beg during meal prep or have access to kitchen waste.

Rat and mouse poisons are designed to be palatable — which makes them dangerous to pets as well as pests. Anticoagulant rodenticides can cause internal bleeding; some newer formulations are even more acutely toxic. Certain insecticides (including some flea and tick products formulated for dogs) can cause serious neurological harm if applied to or ingested by cats. Always store pest-control products in locked areas and verify species-specific safety before using any pesticide around pets.