In addition, a SPECT imaging study in schizophrenic patients revealed that olanzapine-responsive patients had lower striatal D2 occupancy than some other antipsychotic- and risperidone-responsive patients, while being comparable to clozapine-responsive patients.
Inoltre, uno studio SPECT in pazienti schizofrenici ha dimostrato che i pazienti che rispondono ad olanzapina mostrano un blocco dei recettori striatali D2