Which medication is indicated for both treatment-resistant schizophrenia and suicidal behavior?

• A. Clozapine
• B. Paliperidone
• C. Risperidone
• D. Olanzapine

Answer: (A)

Clozapine stands out because it uniquely treats both treatment-resistant schizophrenia and suicidality in schizophrenia. When a patient doesn’t respond to at least two adequate antipsychotic trials, clozapine is the recommended option due to its superior efficacy in resistant cases. It also has proven anti-suicidality benefits in schizophrenia, shown in trials like InterSePT, making it the only antipsychotic with solid evidence for reducing suicide risk in this population. This dual indication is not shared by the other antipsychotics listed, which may help with psychotic symptoms but lack the same robust support for treatment resistance and suicidality. Remember, clozapine requires careful safety monitoring for agranulocytosis (regular blood tests and enrollment in a monitoring program), plus awareness of other risks like myocarditis, seizures, and metabolic effects.