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Nicotine is obtained primarily from tobacco leaves.
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All methods of ingesting nicotine – smoking, chewing, or sniffing tobacco – transports nicotine to the brain.
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An individual cigarette contains about 10 milligrams of nicotine, although a person ends up receiving only about 1 or 2 milligrams.
Introduction to Nicotine | A Brief History of Tobacco | Chemical Properties | Addiction | Toxicity | Tobacco and America | Tobacco and the Cinema | References