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Related Concept Videos

Psychosis and Antipsychotic Drugs: Overview01:28

Psychosis and Antipsychotic Drugs: Overview

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 symptoms in all...
Antipsychotic Drugs: Typical and Atypical Agents01:21

Antipsychotic Drugs: Typical and Atypical Agents

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...
Psychosis: Goals of Pharmacotherapy01:26

Psychosis: Goals of Pharmacotherapy

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. For...
Drug Therapy01:28

Drug Therapy

The advent of drug therapy has profoundly shaped modern mental health care, providing targeted treatments for a range of psychological disorders. Psychotherapeutic drugs, classified into antianxiety, antidepressant, and antipsychotic medications, address symptoms across anxiety disorders, mood disorders, and schizophrenia. While these medications have transformed patient outcomes, they require careful management due to their potential side effects and limitations.
Antianxiety Medications
Antipsychotic Drugs: Therapeutic Uses and Side Effects01:21

Antipsychotic Drugs: Therapeutic Uses and Side Effects

Antipsychotic drugs primarily block dopamine and serotonin receptors and cholinergic, adrenergic, and histaminergic receptors, thereby reducing hallucinations and delusions in conditions like schizophrenia. However, they can trigger unwanted extrapyramidal effects such as dystonias, Parkinson-like symptoms, and tardive dyskinesia.
Despite these side effects, antipsychotics are used therapeutically for various purposes, including managing schizophrenia, preventing nausea and vomiting, curbing...
Cholinergic Antagonists: Pharmacokinetics01:24

Cholinergic Antagonists: Pharmacokinetics

Cholinergic antagonists—such as antimuscarinics—are available in oral, topical, ocular, parenteral, and inhalational formulations. Most antimuscarinics are oral formulations,  while scopolamine is available as a topical patch, and ipratropium and tiotropium are available as inhalation aerosols or powders. Atropine, tropicamide, and cyclopentolate are topically instilled in the eye. Most antimuscarinics are lipid-soluble and readily absorbed from the gastrointestinal tract and the conjunctiva.

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Related Experiment Videos

Aripiprazole versus typicals for schizophrenia.

J Bhattacharjee, H G G El-Sayeh

    The Cochrane Database of Systematic Reviews
    |February 7, 2008
    PubMed
    Summary

    Aripiprazole shows similar efficacy to typical antipsychotics for schizophrenia but offers better tolerability and fewer adverse effects. This may improve patient compliance with treatment.

    Area of Science:

    • Psychiatry
    • Pharmacology
    • Clinical Trials

    Background:

    • Aripiprazole represents a new generation of antipsychotics, acting as a dopamine-serotonin system stabilizer.
    • This review compares the efficacy and tolerability of aripiprazole against typical antipsychotic drugs.

    Purpose of the Study:

    • To evaluate the comparative effects of aripiprazole versus typical antipsychotics in patients with schizophrenia and schizophrenia-like psychoses.

    Main Methods:

    • A systematic review of randomized controlled trials was conducted using the Cochrane Schizophrenia Group Trials Register.
    • Data from 9 trials involving 3122 participants were analyzed, comparing aripiprazole with typical antipsychotics.

    Main Results:

    • Aripiprazole demonstrated comparable efficacy to typical antipsychotics in improving global and mental state.

    Related Experiment Videos

  • Significant advantages were observed for aripiprazole in reducing extra-pyramidal symptoms, akathisia, hyperprolactinemia, and raised blood glucose.
  • Aripiprazole was associated with increased risks of dizziness and nausea but showed better long-term study completion rates.

    • Conclusions:

    • Aripiprazole offers significant tolerability advantages over typical antipsychotics due to a more favorable adverse effect profile.
    • Improved tolerability may enhance patient compliance, although further pragmatic trials are needed to confirm its clinical utility.