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Related Concept Videos

Psychosis: Goals of Pharmacotherapy01:26

Psychosis: Goals of Pharmacotherapy

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Antipsychotic drugs are a crucial treatment method for acute and chronic psychoses, bipolar illness, and behavioral disorders. The selection of these drugs depends on several factors, including the state of the disease, clinical judgment, possible drug interactions, and the patient's sensitivity to adverse effects. In immediate scenarios, such as delirium and dementia, short-term treatment with low doses of high-potency typical or atypical agents can effectively manage symptom exacerbation.
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Psychosis and Antipsychotic Drugs: Overview01:28

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The term "psychosis" refers to a spectrum of mental disorders characterized by abnormal thoughts, perceptions, and behaviors. It can manifest as mood disorders, dementia, delirium with psychotic features, substance-induced psychosis with psychotic features, brief psychotic disorder, delusional disorder, schizoaffective disorder, and schizophrenia. Among all these disorders, schizophrenia is the most common psychotic disorder, affecting 1% of the worldwide population. Psychotic...
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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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Antidepressant Drugs: MAOIs and Other Agents01:23

Antidepressant Drugs: MAOIs and Other Agents

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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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Antipsychotic Drugs: Typical and Atypical Agents01:21

Antipsychotic Drugs: Typical and Atypical Agents

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Antipsychotic drugs are classified into first-generation (typical) drugs including phenothiazines; and second-generation (atypical) drugs. Chlorpromazine hydrochloride (Thorazine), a phenothiazine derivative, broadly impacts the central, autonomic, and endocrine systems. This drug, along with typical agents like haloperidol (Haldol), primarily works by antagonizing D2 receptors, thus reducing dopaminergic neurotransmission. However, typical antipsychotics can cause side effects such as sedation...
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Schizophrenia01:17

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Schizophrenia, a term introduced by Swiss psychiatrist Eugen Bleuler in 1911, describes a severe psychological disorder marked by profound disruptions in attention, thought processes, language, emotion, and interpersonal relationships. The core feature of schizophrenia is psychosis — a state characterized by a fundamental detachment from reality. This disconnection manifests through distorted logic, impaired perception, and atypical behavior, severely affecting the lives of those...
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[Pills for the Psyche. Neuro-enhancement among psychiatrists, trainees and other doctors in the Netherlands -- an explanatory study].

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Related Experiment Video

Updated: Mar 22, 2026

Generation of Electronic Cigarette Aerosol by a Third-Generation Machine-Vaping Device: Application to Toxicological Studies
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[Clozapine and the electronic cigarette; a case study].

T S E Nonner, S J Timmer

    Tijdschrift Voor Psychiatrie
    |April 15, 2016
    PubMed
    Summary

    Switching to electronic cigarettes may increase clozapine serum levels in patients. This can lead to severe side effects, necessitating a dosage reduction. Psychiatrists should monitor patients closely for these risks.

    Area of Science:

    • Psychiatry
    • Pharmacology
    • Toxicology

    Background:

    • Increasing popularity of electronic cigarettes (e-cigarettes) presents new clinical challenges.
    • Clozapine is an essential antipsychotic medication with a narrow therapeutic index.
    • Potential drug-drug and drug-substance interactions require careful consideration.

    Observation:

    • A patient switched from traditional cigarettes to e-cigarettes.
    • Following the switch, the patient experienced a significant increase in clozapine serum levels.
    • This elevation in clozapine levels resulted in pronounced adverse effects.

    Findings:

    • The observed rise in clozapine serum levels is theoretically predictable when switching from traditional to electronic cigarettes.
    • The case highlights a potential pharmacokinetic interaction between e-cigarette use and clozapine metabolism.

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  • Dosage adjustment of clozapine was required due to toxicity.

    • Implications:

    • Psychiatrists must be aware of the potential for elevated clozapine levels in patients using e-cigarettes.
    • Close monitoring of clozapine serum concentrations and side effects is crucial for patients who vape.
    • Further research is needed to fully understand the long-term implications of e-cigarette use on psychotropic medication efficacy and safety.