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Related Concept Videos

Stimulants01:29

Stimulants

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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...
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Drugs Acting on Autonomic Ganglia: Stimulants01:23

Drugs Acting on Autonomic Ganglia: Stimulants

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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...
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CNS Stimulants: Cocaine, Amphetamines and Cannabinoids01:24

CNS Stimulants: Cocaine, Amphetamines and Cannabinoids

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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...
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Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists01:30

Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists

560
Cognitive enhancers, also known as "smart drugs," are substances used to enhance memory, mental alertness, and concentration. These can be natural or synthetic and improve cognition in conditions like Alzheimer's disease (AD) and other neurodegenerative diseases. Some common examples include caffeine, amphetamines, methylphenidate, modafinil, arecoline, donepezil, vortioxetine, and piracetam. These enhancers work on the principle of synaptic plasticity and altered circuit function.
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Substance Use Disorders Affecting Sleep01:24

Substance Use Disorders Affecting Sleep

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Substance use disorders involve a pattern of using drugs more extensively than intended and continuing use despite harmful consequences. This includes legal substances like alcohol and nicotine, as well as illegal drugs. These disorders often involve both physical and psychological dependence, reflecting compulsive use of substances that significantly alter thoughts, feelings, and behaviors, contributing to a major public health issue.
Understanding the concepts of physical dependence,...
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Drug Abuse and Addiction: Pharmacological Phenomena01:15

Drug Abuse and Addiction: Pharmacological Phenomena

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Drug dependence, abuse, and addiction are complex phenomena that can precipitate various abnormal states. Physical dependence refers to a state of pharmacological adaptation to a drug. This adaptation often results in tolerance—a reduced response to the drug after repeated administrations. When the drug use is abruptly stopped, withdrawal symptoms occur due to the body's need to readjust from the pharmacologically induced imbalance. However, tolerance and withdrawal symptoms do not...
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A General Method for Evaluating Deep Brain Stimulation Effects on Intravenous Methamphetamine Self-Administration
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The Association Between Stimulant Medication Use and Mortality.

John P Morrow1, Undina Moreton2, Tianchen Xu3

  • 1Amgen, Inc. Thousand Oaks, CA.

Journal of Clinical Psychopharmacology
|September 25, 2025
PubMed
Summary
This summary is machine-generated.

Prescription stimulant medications like dextroamphetamine and methylphenidate were linked to increased mortality risks in adults. Healthcare providers should carefully assess cardiovascular health before prescribing these stimulants, particularly for older patients.

Keywords:
adverse eventsmortalitystimulants

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Area of Science:

  • Pharmacovigilance and Pharmacoepidemiology
  • Cardiovascular Safety of Medications
  • Public Health Research

Background:

  • Prescription stimulants are widely used for conditions like ADHD.
  • Concerns exist regarding the cardiovascular safety of these medications.
  • Large-scale data analysis is needed to evaluate mortality risks.

Purpose of the Study:

  • To investigate the association between prescription stimulant use and mortality.
  • To analyze data from the FDA Adverse Event Reporting System (FAERS) and electronic health records (EHR).
  • To assess risks in adult patients at a large metropolitan health care center.

Main Methods:

  • Two analyses were conducted: FAERS data and EHR data using a self-controlled case series (SCCS) method.
  • FAERS analysis compared sudden death events with stimulants versus control medications using propensity score matching.
  • SCCS analysis assessed all-cause mortality risk following stimulant initiation within individuals.

Main Results:

  • Stimulants (dextroamphetamine, methylphenidate, and the stimulant class) were significantly associated with sudden death in FAERS analyses.
  • These stimulants were also significantly associated with all-cause mortality in SCCS analyses.
  • Mortality risk increased with age at first stimulant use for most stimulants.

Conclusions:

  • A significant association between stimulant use and mortality was documented.
  • Existing guidance to assess cardiovascular disease and risk factors before prescribing stimulants is reinforced.
  • Particular caution is advised for older adults initiating stimulant therapy.