My dog ate cigarettes. What symptoms of nicotine poisoning should I watch for?
Good on you for reaching out for help and information! The toxic level of nicotine in dogs is 5 milligrams of nicotine per pound of body weight. In dogs, 10 mg/kg is potentially lethal. One cigarette contains 15 to 25 milligrams of nicotine depending on the brand. So two cigarettes would contain 30-50mg of nicotine. That means if your dog weighs 30kg (66lbs), she would have potentially consumed 1mg/kg to 1.67mg/kg. If she weighs 5kg (11lbs), she would have potentially consumed 6mg/kg-10mg/kg (potentially lethal dose). I'm not sure how much your dog weighs, but if she is a larger dog (over 50lbs), she likely did not consume enough to be toxic. The signs of toxicity are dose-dependent and generally begin within one hour of ingestion. Many dogs will vomit naturally after ingestion. I would monitor her for now. Watch out for tremors, weakness, stumbling, lethargy, drooling, vomiting, diarrhea, or difficulty breathing. If you see any of these signs, get Kai into your vet right away.
Updated on September 23rd, 2025