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'''Nicotine''' is a naturally-occurring [[stimulant]] of the [[central nervous system]]. It is the active ingredient in [[tobacco]] and one of the most addictive drugs known to man.

'''Nicotine''' is a naturally-occurring alkaloid and [[stimulant]] of the [[central nervous system]]. It is the active ingredient in [[tobacco]] and one of the most addictive drugs known to man. Nicotine can also be synthesised. For recreational purposes, nicotine is usually administered by inhalation, such as smoking tobacco products such as [[cigarettes]] or [[cigar|cigars]], or through [[vaping]]. Products such as snuff are administrated nasally (though snorting/sniffing).  

Nicotine has been shown to be more addictive than [[cocaine]] and even [[heroin]]. Nicotine is used medicinally to treat ulcerative colitis, [[breast cancer]] among women with the high risk BRCA gene, Kaposi's sarcoma, schizophrenia, and asthma. Nicotine is also used to treat headaches.  

Nicotine has been shown to be more addictive than [[cocaine]] and even [[heroin]]. Nicotine is used medicinally to treat ulcerative colitis, [[breast cancer]] among women with the high risk BRCA gene, Kaposi's sarcoma, schizophrenia, and asthma. Nicotine is also used to treat headaches.