Answer by
Huntress (1935)
Nicotine is toxic to dogs as well as humans. The level of nicotine for toxicity is 5 milligrams per pound of body weight. A cigarette contains 15 to 25 milligrams of nicotine depending on the brand. If your dog is stumbling, vomiting, drooling, or has diarrhea or tremors you should definitely take him/her to the Vet.