PupkeeperToxicEmergency
Dog ate caffeine pills and energy supplements? Toxic: what to do now
Caffeine pills, diet pills and energy products overstimulate dogs, causing a racing heart, restlessness and pacing. Caffeine pills can kill small dogs.
If your dog ate or touched this, call your vet or a pet poison line now
United States
Poison lines in other countries: United Kingdom, Canada, Australia, New Zealand, Belgium, France, JM, PR, Singapore, Switzerland, TT, VI
Caffeine pills and energy supplements and dogs: key facts
- Verdict
- Toxic · Emergency: get help now
- What it can do
- Restlessness and jitters, hyperactivity or pacing, fast heart rate, crying or barking a lot and vomiting or stomach upset. All 8
- How fast
- Within a few hours; signs can last several days
- What to do now
- Call your vet or a pet poison line now. All steps
- Sources
- VCA Animal Hospitals, Merck Veterinary Manual. Reviewed 9 October 2026.
What should I do if my dog ate caffeine pills and energy supplements?
- Call your vet or a pet poison line now.
- Keep the packaging and bring it with you.
- Act fast. Early treatment is key.
Don't
- Don't make your dog vomit unless a vet tells you to.
Symptoms to watch for
- Restlessness and jitters
- Hyperactivity or pacing
- Fast heart rate
- Crying or barking a lot
- Vomiting or stomach upset
- Peeing more
- Big pupils
- Tremors or seizures
When signs appear: Within a few hours; signs can last several days
Why
Caffeine is a stimulant, and dogs are more sensitive to it than people. Guarana is a natural caffeine source whose effects can last longer.
Sources
- VCA Animal Hospitals: Caffeine Toxicity in Pets
- Merck Veterinary Manual: Toxicoses in Animals From Human Dietary and Herbal Supplements
Guide reviewed 9 October 2026. Page updated 7 November 2026.
General information from the sources above, not a diagnosis. When in doubt, call your vet.