Cigarettes and Other Tobacco Products DrugFacts
Tobacco is a plant grown for its leaves, which are dried and fermented before being put in tobacco products. Tobacco contains nicotine, an ingredient that can lead to addiction, which is why so many people who use tobacco find it difficult to quit. There are also many other potentially harmful chemicals found in tobacco or created by burning it.
Source: National Institute of Health (2021). Cigarettes and other tobacco products DrugFacts.