How do nicotine replacement therapies reduce withdrawal symptoms and cigarette cravings?

Nicotine replacement therapy (NRT) helps individuals quit smoking by providing controlled, lower doses of nicotine without the harmful tar, carbon monoxide, and other toxic chemicals produced by burning tobacco.123

By maintaining more stable and lower concentrations of nicotine in the bloodstream, these therapies mitigate the withdrawal symptoms—such as irritability, anxiety, and difficulty concentrating—that typically occur when a person stops smoking. Because NRT delivers nicotine more slowly and in smaller amounts than cigarettes, it is significantly less addictive and helps users gradually decrease their intake over time, which improves the likelihood of successfully quitting.123

NRT is available in various forms, including:
* Transdermal patches
* Chewing gum and lozenges4
* Nasal sprays
* Oral inhalers12

Consistent use is often key to efficacy, and health professionals can provide guidance on appropriate dosing to prevent relapse.14