
Nicotine - Wikipedia
The primary therapeutic use of nicotine is treating nicotine dependence to eliminate smoking and the damage it does to health.
What Nicotine Is and How It Affects Your Body - Verywell Health
Dec 4, 2025 · Nicotine, a highly addictive stimulant found primarily in tobacco plants, plays a significant role in smoking addiction due to its effects on the brain's pleasure and reward systems.
What Nicotine Does to Your Body - Verywell Mind
Sep 24, 2025 · Nicotine increases heart rate and blood pressure, and long-term use can damage your heart and lungs. Overcoming nicotine addiction is hard, but therapy and nicotine replacement can …
Nicotine Is Why Tobacco Products Are Addictive | FDA
Nicotine is what keeps people using tobacco products. However, it’s the thousands of chemicals contained in tobacco and tobacco smoke that make tobacco use so deadly.
Nicotine: Facts, effects, and dependency - Medical News Today
Jul 1, 2024 · Nicotine is a highly addictive substance found in tobacco products and can be the reason many people consume tobacco. It may cause side effects such as dizziness, racing heartbeat, and …
The Hidden Healing Power of Nicotine - Psychology Today
Jun 8, 2025 · What if nicotine—which we associate with addiction—actually holds the key to treating depression, ADHD, Alzheimer's, & Parkinson's? Discover the surprising medical revolution.
Nicotine dependence - Symptoms and causes - Mayo Clinic
Jun 14, 2025 · Nicotine is the chemical in tobacco that keeps you smoking tobacco. Nicotine reaches the brain within seconds of taking a puff. In the brain, nicotine increases the release of brain chemicals …
Nicotine benefits, dosage, and side effects - Examine
Aug 28, 2025 · Nicotine is the main stimulatory compound found in cigarettes and is now sold in vaporizers and patches in isolation. It works on the acetylcholine system, and is implicated in …
Nicotine | Tobacco, Addiction, Poison | Britannica
Jan 10, 2026 · Nicotine is the chief addictive ingredient in the tobacco used in cigarettes, cigars, and snuff. In its psychoactive effects, nicotine is a unique substance with a biphasic effect; when inhaled …
Nicotine - American Lung Association
Sep 9, 2024 · Nicotine is the addictive drug in tobacco products. Cigarettes, cigars, smokeless tobacco and nearly all e-cigarettes contain nicotine.