Question

In schizophrenia, the neurons affected by dopamine are overstimulated. This condition is treated with drugs like chlorpromazine (Thorazine), which bind to the affected receptors and inhibit the dopamine signal. Does chlorpromazine act as an agonist or antagonist?

Name: Problem 78, Chapter 28: Fundamentals of General, Organic, and Biological Chemistry
Uploaded: 2022-01-08T04:36:42-08:00
Duration: 2 min 5 s
Channel: Ramesh Singh
Description: In schizophrenia, the neurons affected by dopamine are overstimulated. This condition is treated with drugs like chlorpromazine (Thorazine), which bind to the affected receptors and inhibit the dopamine signal. Does chlorpromazine act as an agonist or antagonist?

   In schizophrenia, the neurons affected by dopamine are overstimulated. This condition is treated with drugs like chlorpromazine (Thorazine), which bind to the affected receptors and inhibit the dopamine signal. Does chlorpromazine act as an agonist or antagonist?

Fundamentals of General, Organic, and Biological Chemistry

John McMurry, David… 1st Edition

Chapter 28, Problem 78

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Solved by Expert Ramesh Singh

01/08/2022

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In schizophrenia, the neurons affected by dopamine are overstimulated. This condition is treated with drugs like chlorpromazine (Thorazine), which bind to the affected receptors and inhibit the dopamine signal. Does chlorpromazine act as an agonist or antagonist?

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Key Concepts

Antipsychotic Mechanisms

Antipsychotic drugs, particularly first-generation ones, work primarily by blocking dopamine receptors. This antagonistic effect reduces the overstimulation of neurons by dopamine, alleviating symptoms associated with conditions like schizophrenia.

Dopamine Neurotransmission

Dopamine is a key neurotransmitter involved in regulating mood, behavior, and cognition. Its signaling plays a vital role in both normal brain function and in the pathophysiology of disorders such as schizophrenia, where abnormal dopamine activity is observed.

Receptor Agonism and Antagonism

Agonists are substances that bind to receptors and produce a response similar to the natural neurotransmitter, whereas antagonists bind to receptors without activating them and block the action of agonists. Understanding the difference between these actions is fundamental in pharmacology, especially in determining how drugs modulate receptor activity to treat various conditions.

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