When people talk about the dangers of secondhand smoke, the focus is usually on the health risks that humans face. However, dogs (and cats!) are just as susceptible to health problems from those cigarettes.
In addition to respiratory problems that could develop when your pets breath in cigarette smoke, if your curious pet should get ahold of and ingest a cigarette or other tobacco product, the nicotine found in the products is highly toxic–muscle weakness, decreased breathing rate, coma and death are all possible.
Smoking outside, and, of course, not smoking at all are the two easiest ways to get keep your pooch out of harm’s way and away from the vet.
Source: ascpa.org