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Related Concept Videos

Stimulants01:29

Stimulants

Stimulants are substances that enhance neural activity and elevate dopamine levels in the brain, leading to their highly addictive nature. These drugs include cocaine, amphetamines, MDMA, caffeine, and nicotine, each with distinct mechanisms of action and varied health implications.
Cocaine can be administered via snorting, injection, or smoking. It primarily functions by blocking the reuptake of dopamine, resulting in a euphoric high characterized by an intense sensation of happiness and...
CNS Depressants: Alcohol and Nicotine01:27

CNS Depressants: Alcohol and Nicotine

Ethanol, a clear colorless alcohol, has been consumed by humans for millennia, but its effects on the body are far from benign. At lower doses, it induces decreased inhibitions and loquaciousness, leading to its social appeal. However, it can cause severe consequences at higher doses, such as coma and respiratory depression, due to its zero-order elimination kinetics. Chronic ethanol abuse wreaks havoc on multiple organ systems, particularly the CNS and the liver. Abrupt cessation of ethanol...
Drugs Acting on Autonomic Ganglia: Stimulants01:23

Drugs Acting on Autonomic Ganglia: Stimulants


Ganglionic stimulants activate NM nicotinic receptors in autonomic ganglia, falling into two categories: nicotine mimetics [e.g., lobeline, dimethylpiperazine, tetramethylammonium] and muscarinic receptor agonists [e.g., muscarine, methacholine]. The first category's action is rapid and blocked by nicotinic receptor antagonists, while the second category's action is delayed and blocked by atropine-like agents. Nicotine, an alkaloid, affects the heart rate by stimulating sympathetic or...
Drug Dependence01:17

Drug Dependence

Medications are typically administered to achieve therapeutic effects. Some drugs can modify an individual's mood and perception, frequently resulting in various enjoyable experiences. However, this can result in drug dependency, a condition marked by continuous drug use despite potential negative consequences. Drug dependency primarily falls into two categories: psychological and physical dependence. Psychological dependence occurs when the pleasurable feelings induced by the drug...
Stress Prevention and Stress Management Techniques IV01:26

Stress Prevention and Stress Management Techniques IV

Stress often leads to unhealthy habits like smoking, excessive drinking, and overeating, which offer short-term relief but ultimately increase long-term health risks. These behaviors create a cycle that temporarily lowers stress levels but can result in severe long-term health consequences. Breaking these habits is essential to reduce the risk of chronic diseases and improve overall well-being. Three primary changes that support better health include quitting smoking, reducing alcohol intake,...
CNS Stimulants: Cocaine, Amphetamines and Cannabinoids01:24

CNS Stimulants: Cocaine, Amphetamines and Cannabinoids

CNS stimulants, such as cocaine, amphetamines, and cannabinoids, have varying structures and mechanisms of action that lead to different therapeutic effects and side effects. Cocaine, with its molecular formula C17H21NO4, is a tropane alkaloid and a tertiary amino compound. It has two chemical forms: the hydrochloride salt and the "freebase." The former is in powder form, while the latter involves removing the hydrochloride salt to create a form that can be smoked. Cocaine exerts its effects by...

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Updated: Jun 3, 2026

Methods to Evaluate Cytotoxicity and Immunosuppression of Combustible Tobacco Product Preparations
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Published on: January 10, 2015

Tobacco, nicotine and harm reduction.

Jacques Le Houezec1, Ann McNeill, John Britton

  • 1Public Health, Tobacco Dependence, Rennes, France. jacques.lehouezec@amzer-glas.com

Drug and Alcohol Review
|March 8, 2011
PubMed
Summary

Nicotine replacement therapy (NRT) and smokeless tobacco offer reduced harm alternatives to smoking. Current regulations restrict NRT effectiveness and smokeless tobacco availability, hindering public health efforts.

Area of Science:

  • Public Health
  • Toxicology
  • Regulatory Science

Background:

  • Tobacco smoking is a leading cause of preventable death, primarily due to the toxic combustion process.
  • Nicotine dependence drives chronic, relapsing smoking behavior, leading to lifelong addiction for many.
  • Harm reduction strategies propose substituting combustible cigarettes with less toxic nicotine products.

Purpose of the Study:

  • To evaluate the potential of nicotine replacement therapy (NRT) and smokeless tobacco in tobacco harm reduction.
  • To identify regulatory barriers limiting the accessibility and effectiveness of reduced-harm nicotine products.
  • To advocate for regulatory changes promoting less harmful alternatives to smoking.

Main Methods:

  • Analysis of existing data on NRT efficacy and regulatory restrictions.

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  • Review of the role of smokeless tobacco (snus) as a smoking alternative.
  • Examination of European Union regulations concerning tobacco and nicotine products.

    • Main Results:

    • NRT products are constrained by regulations on dose and delivery, making them less effective than cigarettes.
    • Smokeless tobacco, like snus, has demonstrated success as a reduced-hazard alternative in Sweden.
    • Current EU regulations and commercial concerns limit the wider adoption of smokeless tobacco.

    Conclusions:

    • Urgent development of more effective NRTs and removal of regulatory barriers are needed to increase accessibility.
    • Smokeless tobacco holds significant harm reduction potential but faces regulatory and commercial challenges.
    • An overarching European regulatory framework for tobacco and nicotine products is essential to prioritize public health by ensuring accessibility of least harmful options.