Canopy Vet
This list isn't exhaustive. If you think your dog ate something toxic, call your vet or a pet poison hotline right away — don't wait for symptoms.
Why it's dangerous
Contains theobromine and caffeine, which dogs can't process well. The darker the chocolate (baking and dark are worst), the more dangerous.
Signs to watch for
Vomiting, diarrhea, restlessness, panting, racing heart, tremors, seizures.
What to do
Call your vet or a pet poison hotline with the type and amount eaten. Don't wait for signs.
Why it's dangerous
A sweetener in sugar-free gum, mints, some peanut butters, and baked goods. Causes a dangerous blood-sugar crash and can trigger liver failure, very fast.
Signs to watch for
Weakness, wobbliness, collapse, seizures — sometimes within 15-30 minutes.
What to do
Emergency. Call immediately; even small amounts are dangerous. Always check peanut-butter labels before sharing.
Why it's dangerous
Can cause sudden kidney failure. There is no known safe amount, and even a few can affect some dogs.
Signs to watch for
Vomiting, lethargy, reduced or no urination (may be delayed).
What to do
Call immediately, even for a small number. Includes currants and grape-based foods.
Why it's dangerous
Damage red blood cells and cause anemia — cooked, raw, or powdered (watch for them in sauces, broths, and baby food).
Signs to watch for
Weakness, pale gums, red-brown urine, lethargy — often delayed by days.
What to do
Call your vet with the amount eaten. Onion is more potent than garlic, but both add up.
Why it's dangerous
Cause weakness, tremors, and overheating in dogs — the exact mechanism isn't fully known.
Signs to watch for
Hind-leg weakness, vomiting, tremors, fever, wobbliness.
What to do
Call your vet. Most dogs recover, but they need guidance and monitoring.
Why it's dangerous
Coffee, tea, energy drinks, and caffeine pills overstimulate the heart and nervous system.
Signs to watch for
Restlessness, racing heart, tremors, seizures.
What to do
Call immediately, especially for grounds, tea bags, or pills, which are concentrated.
Why it's dangerous
Drinks, and foods made with alcohol, hit dogs far harder than people. Also forms in raw bread dough.
Signs to watch for
Wobbliness, vomiting, disorientation, slow breathing, collapse.
What to do
Emergency. Call immediately.
Why it's dangerous
Rises in the warm stomach, causing painful bloating, and ferments into alcohol.
Signs to watch for
Swollen belly, unproductive retching, wobbliness, distress.
What to do
Emergency — call immediately. This is both a bloat risk and an alcohol risk.
Why it's dangerous
Human anti-inflammatories (ibuprofen, naproxen) cause stomach ulcers and kidney failure in dogs.
Signs to watch for
Vomiting (sometimes with blood), appetite loss, lethargy, black stools.
What to do
Never give human pain meds. If ingested, call immediately. Use only vet-prescribed pain relief.
Why it's dangerous
Damages the liver and red blood cells; dogs can't safely process it.
Signs to watch for
Swollen face or paws, brown or blue gums, lethargy, trouble breathing.
What to do
Emergency — call immediately. Never give to a dog.
Why it's dangerous
Different types cause internal bleeding, brain swelling, or kidney failure. Dogs also eat poisoned rodents.
Signs to watch for
Often delayed for days — weakness, bleeding or bruising, wobbliness, seizures, trouble breathing.
What to do
Emergency. Bring the packaging (the active ingredient guides treatment) and call immediately.
Why it's dangerous
Tastes sweet and is extremely toxic — even a very small amount causes fatal kidney failure.
Signs to watch for
Early 'drunk' wobbliness and increased thirst, then vomiting, then kidney failure.
What to do
Emergency — every minute counts. Call immediately. Store sealed and clean up spills at once.
Why it's dangerous
Every part is toxic, especially the seeds; causes liver failure. A common houseplant and landscaping plant.
Signs to watch for
Vomiting, diarrhea, lethargy, jaundice (yellow gums/eyes).
What to do
Emergency — call immediately and bring a photo of the plant.
Why it's dangerous
Affects the heart's rhythm. (Note: true lilies are especially deadly to cats.)
Signs to watch for
Vomiting, irregular or slow heartbeat, weakness, collapse.
What to do
Emergency — call immediately.
Why it's dangerous
Affect the heart and nervous system; even a few leaves can be dangerous.
Signs to watch for
Drooling, vomiting, diarrhea, weakness, abnormal heart rhythm.
What to do
Emergency — call your vet or a poison hotline.
Why it's dangerous
Causes severe gut damage and can lead to organ failure and bone-marrow suppression.
Signs to watch for
Vomiting (sometimes bloody), diarrhea, weakness — effects can be delayed.
What to do
Emergency — call immediately with a photo of the plant.
Why it's dangerous
The bulbs are the most toxic part; irritate the gut and, in quantity, can affect the heart and breathing.
Signs to watch for
Drooling, vomiting, diarrhea, lethargy.
What to do
Call your vet — watch dogs who dig up spring bulbs in the garden.