Chlorpromazine Drug Class and Clinical Applications

Classification and Pharmacological Properties

Chlorpromazine is considered a "low-potency" typical antipsychotic, meaning it is more sedating but produces fewer extrapyramidal symptoms compared to "high-potency" agents like haloperidol 3
Chlorpromazine exerts its primary effect as a central nervous system (CNS) dopamine receptor antagonist 3
It also has significant activity at other receptor types, including anticholinergic, antihistaminic, and alpha-adrenergic receptors, which contributes to its side effect profile 4

Chlorpromazine is used for the management of acute episodes and prevention of relapse in schizophrenia 2
It is effective for treating severe agitation and violent behavior, particularly in emergency settings 2
Chlorpromazine can cause QTc prolongation, potentially resulting in torsades de pointes, requiring ECG monitoring 2
It is more likely to cause hypotension than some other antipsychotics 2
Co-administration with other QT-prolonging medications should be avoided due to increased risk of cardiac arrhythmias 2
Regular assessment of cardiovascular status, extrapyramidal symptoms, and metabolic parameters is essential during treatment 2