Caffeine Poisoning in Dogs and Cats
Dogs and cats: Deadly toxin—none. Call a poison hotline the same hour after grounds, espresso, energy drinks, or caffeine pills.
Coffee, tea, energy drinks, coffee grounds, and caffeine pills are methylxanthine sources for dogs and cats. Grounds and pills pack more caffeine into a small volume. This page is a same-hour call guide, not a leftover latte experiment.
Researched & Compiled by the Pet Safety Hub Editorial Team
Clinical Data Sources: ASPCA Animal Poison Control Center & Merck Veterinary Manual
These pages describe clinical possibilities and a Green, Yellow, or Red triage path. They do not diagnose an individual animal or replace an examination by a licensed veterinarian. Read the editorial standards.
2. Mechanism
Caffeine is a methylxanthine like theobromine. It speeds the heart and agitates the nervous system. Pets clear it slowly compared with people, so a human serving can overwhelm a small body.
3. Signs and timing
| Species | Early signs |
|---|---|
| Dogs | Restlessness, vomiting, fast heart rate, tremors or seizures |
| Cats | Hyperactivity, vomiting, fast heart rate, tremors |
Signs often start within a few hours. Collapse or seizures mean travel while you call.
4. What to do
Take the product away. Bring the container. Do not induce vomiting at home unless a veterinarian orders it. Do not offer milk as an antidote.