what is nicotin and from which plant it is obtained - Biology - Human Health and Disease

Question

what is nicotin and from which plant it is obtained?

Abhishek Mudgal · Answer

Nicotine is a stimulant and potent parasympathomimetic
alkaloid that is naturally produced in the nightshade family
of plants It is used for the treatment of tobacco use
disorders as a smoking cessation aid and nicotine dependence
for the relief of withdrawal symptoms Nicotine is highly
addictive
Excretion: 
Renal, urine pH-dependent; 10–20%
Dependence liability: 
Physical: low–moderate