Uses of nicotine

Nicotine is an alkaloid naturally produced in nightshade plants that is widely used as a stimulant. It is obtained from tobacco leaves and acts as a receptor antagonist. Nicotine has several uses including as a medical treatment for nicotine dependence, an insecticide, and a recreational drug. It is highly addictive and hard to discontinue recreational use of. Nicotine is also the key component in e-cigarettes that contributes to their addictiveness.