Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 11/3/2025

Safe Co-Administration of Olanzapine and Lorazepam

Introduction to Safety Considerations

  • Fatalities have been reported with concurrent use of benzodiazepines and high-dose olanzapine, making respiratory monitoring essential, according to Praxis Medical Insights 1, 2
  • The risk of oversedation and respiratory depression is substantially increased when these medications are combined, particularly in patients who have consumed alcohol, as noted by Praxis Medical Insights 1, 2

Monitoring and Precautions

  • Continuous monitoring of oxygen saturation is mandatory when combining these medications, as recommended by the Pediatrics journal 3, 4
  • The American Academy of Pediatrics recommends being prepared to provide respiratory support, as the incidence of apnea increases when benzodiazepines are combined with other sedative agents, according to Pediatrics 3, 4

REFERENCES

1

Olanzapine Dosing Guidelines [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

2

Olanzapine Dosing and Administration Guidelines [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025