Related Experiment Video
Updated: Jun 25, 2026

07:35
Behavioral Characterization of Pentylenetetrazole-induced Seizures: Moving Beyond the Racine Scale
Published on: July 8, 2025
Zotepine: a clinical review
1Cheadle Royal Hospital, Cheshire, UK.
Expert Opinion on Drug Metabolism & Toxicology
|February 10, 2009
Summary
Zotepine, an antipsychotic, shows efficacy and a favorable side effect profile compared to other atypical antipsychotics. Further large-scale studies are needed to confirm its use in treatment-resistant schizophrenia.
Area of Science:
- Pharmacology
- Psychiatry
- Clinical Therapeutics
Background:
- Zotepine is a second-generation antipsychotic drug belonging to the substituted dibenzothiepine tricyclic class.
- It exerts effects on dopamine, serotonin, and noradrenaline receptors, common targets for antipsychotic medications.
Purpose of the Study:
- To review existing research on zotepine, focusing on its efficacy and adverse reactions.
- To compare zotepine's safety and tolerability profile with other atypical antipsychotics.
Main Methods:
- A comprehensive literature search of medical databases was conducted.
- Data on zotepine efficacy and adverse reactions were collected, including reports to the UK Medicines and Healthcare Products Regulatory Agency.
- Relevant double-blind and open-label studies were analyzed.
Main Results:
- Double-blind trials demonstrate zotepine's efficacy as an antipsychotic.
- Zotepine exhibits a safe side effect profile, favorably comparing to other atypical antipsychotics regarding metabolic effects and movement disorders.
- Open-label studies suggest potential utility in treatment-resistant schizophrenia.
Conclusions:
- Zotepine is an efficacious antipsychotic with a favorable safety profile.
- Larger, double-blind studies are necessary to validate its effectiveness in treatment-resistant schizophrenia.
Related Concept Videos
Antiepileptic Drugs: Potassium Channel Activators
Ezocgabine or retigabine, an antiepileptic drug of remarkable efficacy, has revolutionized the management of seizures. It is a potassium channel activator, explicitly targeting the family of Q subtype potassium channels. It enhances the transmembrane potassium currents, regulating neuronal excitability. This action stabilizes the resting membrane potential, a pivotal factor in mitigating the hyperexcitability that characterizes epilepsy.
Ezogabine has gained approval as an adjunctive treatment...
Ezogabine has gained approval as an adjunctive treatment...
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...
Sedatives and Hypnotics Drugs: Benzodiazepines
Benzodiazepines have both sedative and hypnotic properties. They include compounds such as diazepam (Valium) and alprazolam (Xanax). Structurally, their cores are similar, consisting of the fusion of a benzene ring and a diazepine ring, but they share a common mechanism of action in the central nervous system (CNS).
Benzodiazepines work by enhancing the effects of the inhibitory neurotransmitter GABA. They bind to the GABAA receptor, increasing its affinity for GABA, which opens chloride...
Benzodiazepines work by enhancing the effects of the inhibitory neurotransmitter GABA. They bind to the GABAA receptor, increasing its affinity for GABA, which opens chloride...
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 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...
Sedatives and Hypnotics: Overview
Sedatives are drugs that alleviate anxiety, while hypnotics induce sleep. Both classes of medication suppress neuronal activity, leading to a calming effect for sedatives and facilitating sleep for hypnotics.
Sedative-hypnotics are categorized into barbiturates, benzodiazepines (BZDs), and non-benzodiazepines or Z-drugs. These drugs work by suppressing central nervous system activity, and this suppression is dose-dependent. Older sedative medications, like barbiturates, follow a linear curve in...
Sedative-hypnotics are categorized into barbiturates, benzodiazepines (BZDs), and non-benzodiazepines or Z-drugs. These drugs work by suppressing central nervous system activity, and this suppression is dose-dependent. Older sedative medications, like barbiturates, follow a linear curve in...