Patients treated with clozaril had a statistically significant longer delay in the time to recurrent suicidal behavior in comparison with olanzapine.

A final limitation was that the study did not determine whether the benefits of olanzapine were worth the additional costs and adverse consequences.

Saquinavir major concurrent use of olanzapine and saquinavir should be avoided due to an increased risk for qt prolongation and torsade de pointes tdp .