Which of the following is a brand name for Clozapine?

Clozapine is an atypical antipsychotic medication primarily used to treat schizophrenia, particularly patients who have not responded to other treatments. The brand name for Clozapine is Clozaril, which was its original name when it was launched. This brand name is widely recognized and associated with the medication's use in clinical settings.

The other names listed are brand names for different antipsychotic medications: Zyprexa is the brand name for Olanzapine, Risperdal refers to Risperidone, and Seroquel is the brand for Quetiapine. Each of these medications belongs to the category of atypical antipsychotics but has distinct chemical structures, indications, and side effect profiles. Thus, Clozaril is the only correct association with Clozapine among the options provided.