Pets Kick It Idaho! Marijuana Toxicosis in Pets Cummings School of Veterinary Medicine One of our customers has had first hand experience of this recently. One cigarette butt can contain enough nicotine to poison a dog. Especially puppies and smaller breeds. What can happen Nicotine is extremely dangerous for your pets. Even small amounts from cigarettes, vapes, or nicotine patches can be toxic and life threatening. Keep your pets safealways store nicotine products out of reach! #