Hyperprolactinemia is primarily associated with which antipsychotic class?

Hyperprolactinemia is primarily associated with which antipsychotic class?

• A. FGAs
• B. SGAs
• C. Clozapine
• D. Olanzapine

Answer: (B)

Hyperprolactinemia occurs when dopamine’s braking effect on prolactin release is blocked in the tuberoinfundibular pathway. Antipsychotics that strongly block D2 receptors in this pathway push prolactin up, so the traditional association is with first-generation (typical) antipsychotics. Among second-generation (atypical) antipsychotics, the overall risk is lower, but some members—most notably risperidone and paliperidone—can raise prolactin significantly. Others like olanzapine, quetiapine, and clozapine tend to have minimal effects, and aripiprazole can even lower prolactin due to its partial agonist action. So the classic link is stronger with FGAs, though certain SGAs can still cause notable prolactin elevation depending on the agent.

Hyperprolactinemia occurs when dopamine’s braking effect on prolactin release is blocked in the tuberoinfundibular pathway. Antipsychotics that strongly block D2 receptors in this pathway push prolactin up, so the traditional association is with first-generation (typical) antipsychotics. Among second-generation (atypical) antipsychotics, the overall risk is lower, but some members—most notably risperidone and paliperidone—can raise prolactin significantly. Others like olanzapine, quetiapine, and clozapine tend to have minimal effects, and aripiprazole can even lower prolactin due to its partial agonist action. So the classic link is stronger with FGAs, though certain SGAs can still cause notable prolactin elevation depending on the agent.