Used primarily to aid in smoking cessation, the compound helps reduce withdrawal symptoms and cravings by acting as a partial agonist at nicotinic acetylcholine receptors. It diminishes the pleasure derived from smoking by blocking nicotine’s effects if the person resumes smoking. Often prescribed in tablet form, it is taken over a 12-week course, sometimes extended, and is frequently combined with behavioral support for higher success rates. It does not contain nicotine, making it distinct from other smoking cessation aids like patches or gum.