Which medication is indicated for adjunct to mood stabilizers/antidepressants for schizoaffective disorder?

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

Answer: (A)

In schizoaffective disorder, when psychotic symptoms persist despite mood stabilization with mood stabilizers or antidepressants, a stronger antipsychotic with proven efficacy in treatment-resistant psychosis is preferred. Clozapine stands out because it has the strongest evidence for reducing psychotic symptoms when other antipsychotics have failed, and it also uniquely lowers suicidality risk, which is particularly relevant in schizoaffective presentations that include mood features. When used as an adjunct to mood stabilizers or antidepressants, clozapine can provide better overall control of psychosis and can help stabilize mood symptoms in real-world practice.

It’s important to note that clozapine requires regular blood monitoring due to the risk of agranulocytosis, which explains why it’s typically reserved for cases that haven’t responded to other options. Other antipsychotics can be effective in many patients, but in the context of adjunctive therapy for treatment-resistant schizoaffective disorder, clozapine has the strongest supporting evidence and clinical rationale.