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Related Concept Videos

CNS Stimulants: Psychedelic Agents01:22

CNS Stimulants: Psychedelic Agents

Hallucinogens, also known as psychedelic drugs, are a class of substances known for their ability to alter perception, cognition, and emotions. Despite their profound effects on the mind, these drugs are non-addictive, setting them apart from many other abused substances. The mechanism of action of these drugs lies in their impact on the 5-HT2A receptor in the brain. Upon activation, this receptor couples to Gq-type G proteins, triggering a cascade that releases intracellular calcium. This...
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.
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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...
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...
Adrenergic Agonists: Indirect-Acting Agents01:25

Adrenergic Agonists: Indirect-Acting Agents

Indirect-acting adrenergic agonists potentiate the effects of endogenous catecholamines through different mechanisms without directly binding to adrenoceptors.
One mechanism involves depleting stored catecholamines by displacing them from synaptic vesicles. These agents, known as "displacers," are transported into vesicles at the expense of noradrenaline. Examples include amphetamine and tyramine, which lack a catechol moiety, resulting in prolonged action, improved oral bioavailability, and...
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Antidepressant Drugs: MAOIs and Other Agents

Atypical antidepressants, including bupropion (Wellbutrin), mirtazapine (Remeron), nefazodone (Serzone), trazodone (Desyrel), and vilazodone (Viibryd), offer unique mechanisms of action. Bupropion weakly inhibits dopamine and norepinephrine reuptake, aiding depression treatment and smoking cessation, with a low risk of sexual dysfunction. Mirtazapine enhances serotonin and norepinephrine neurotransmission, leading to sedation, increased appetite, and weight gain. As a result, it helps treat...

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Updated: Jul 3, 2026

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[Psychostimulants].

E Pinto1, W Pitchot, M Ansseau

  • 1Service de Psychiatrie et Psychologie Médicale, CHU Sart Tilman, Liège, Belgique.

Revue Medicale De Liege
|August 2, 2008
PubMed
Summary
This summary is machine-generated.

Problematic psychoactive drug use, including cocaine, amphetamines, and MDMA (ecstasy), has increased over two decades. This review examines literature on the serious somatic and psychiatric damage associated with these stimulant drugs in Belgium.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Public Health

Context:

  • Over the past 20 years, there has been a notable rise in the use of stimulant drugs like cocaine, amphetamines, and MDMA (ecstasy).
  • These substances are increasingly sought for their psychoactive and stimulating effects.
  • Problematic use of these drugs poses significant public health challenges.

Purpose:

  • To review the existing literature on problematic psychoactive drug use in Belgium.
  • To understand the scope and impact of stimulant drug use within the Belgian context.
  • To identify trends and consequences of recreational drug use.

Summary:

  • Cocaine, amphetamines, and MDMA (ecstasy) have attracted new user demographics seeking stimulant effects.
  • These substances are associated with a high potential for dependence.
  • Significant somatic and psychiatric damage can result from the use of these drugs.

Impact:

  • Highlights the need for targeted interventions and public health strategies in Belgium.
  • Informs healthcare professionals about the risks associated with stimulant drug use.
  • Contributes to the understanding of drug trends and their health consequences in Europe.