Nicotine works by binding to nicotine receptors in the brain during abstinence from smoking. This helps to reduce craving and withdrawal symptoms.
Most people will not experience side effects, but some may experience Dizziness, Headache, Dryness in mouth, Nausea, Flatulence, Hiccup, Throat irritation, Indigestion
Nicotine is used in the treatment of smoking addiction.