Which atypical antipsychotic is listed as the drug to know?

Which atypical antipsychotic is listed as the drug to know?

• A. Haloperidol
• B. Quetiapine
• C. Aripiprazole
• D. Benztropine

Answer: (C)

Atypical antipsychotics work by modulating both dopamine and serotonin signaling, which helps control psychotic symptoms while reducing movement-related side effects compared with older drugs. Aripiprazole is set apart because it acts as a partial agonist at dopamine D2 receptors, effectively smoothing dopamine activity: it lowers dopamine where there is too much and allows a little more where there is too little. It also targets serotonin receptors by blocking 5-HT2A and partially stimulating 5-HT1A receptors. This combination provides antipsychotic benefits with a lower risk of extrapyramidal symptoms than many older agents, and it’s often highlighted as the drug to know for its distinctive mechanism and clinical profile. Haloperidol is a typical antipsychotic and carries a higher risk of EPS. Benztropine is an anticholinergic, not an antipsychotic. Quetiapine is indeed an atypical antipsychotic, but in this context aripiprazole is the one specifically emphasized as the drug to know due to its unique mechanism.

Atypical antipsychotics work by modulating both dopamine and serotonin signaling, which helps control psychotic symptoms while reducing movement-related side effects compared with older drugs.

Aripiprazole is set apart because it acts as a partial agonist at dopamine D2 receptors, effectively smoothing dopamine activity: it lowers dopamine where there is too much and allows a little more where there is too little. It also targets serotonin receptors by blocking 5-HT2A and partially stimulating 5-HT1A receptors. This combination provides antipsychotic benefits with a lower risk of extrapyramidal symptoms than many older agents, and it’s often highlighted as the drug to know for its distinctive mechanism and clinical profile.

Haloperidol is a typical antipsychotic and carries a higher risk of EPS. Benztropine is an anticholinergic, not an antipsychotic. Quetiapine is indeed an atypical antipsychotic, but in this context aripiprazole is the one specifically emphasized as the drug to know due to its unique mechanism.