Can my dog eat Caffeine?
Do not feed
TOXIC — causes heart arrhythmia and can be fatal.
Veterinary emergency
If your dog ate this, call ASPCA Poison Control: (888) 426-4435 or go to your nearest emergency vet immediately. Do not wait for symptoms.
What this means
Caffeine stimulates a dog's nervous and cardiovascular systems much more potently than in humans. It causes rapid heart rate, tremors, seizures, and can be fatal. This includes coffee, tea, energy drinks, diet pills, and some medications.
Symptoms to watch for
Note for medium dogs (20–60 lbs)
Any caffeinated substance is dangerous. Seek immediate vet care.
Reviewed against
For reference only — not a substitute for professional veterinary advice. Consult your vet if you have concerns about your dog's health.
Frequently asked questions
Can dogs eat Caffeine?▼
My dog ate Caffeine, what should I do?▼
How much Caffeine is toxic to a dog?▼
Is Caffeine poisonous to puppies?▼
Does my dog’s size matter when eating Caffeine?▼
Small dogs: Even a small amount of coffee grounds can be fatal for a small dog.
Medium dogs: Any caffeinated substance is dangerous. Seek immediate vet care.
Large dogs: Still dangerous. Any significant ingestion is a veterinary emergency.
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