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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Antipsychotic drugs act through
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The correct answer is  (B) Dopamine D2 receptor blockade # Antipsychotics work by blocking a specific subtype of the dopamine receptor, referred to as the D2 receptor.> Older antipsychotics, known as conventional antipsychotics, block the D2 receptor and improve positive symptoms.> Second generation of antipsychotics or Atypical antipsychotics, block D2 receptors as well as a specific subtype of serotonin receptor, the 5HT2A receptor.> It is believed that this combined action at D2 and 5HT2A receptors treats both the positive and the negative symptoms.> Atypical antipsychotics include clozapine, risperidone, olanzapine, quetiapine, paliperidone and ziprasidone.