Randomized Trialhigh evidence
Preoperative Olanzapine and Quality of Recovery after Ambulatory Surgery: A Randomized Clinical Trial.
Anesthesiology·May 20, 2026·PMID 42160634
Why it mattersPostdischarge nausea and vomiting remain common and impair recovery after ambulatory surgery. This study provides evidence that adding a single low-dose olanzapine to standard antiemetics meaningfully improves patients’ overall recovery experience, not just nausea control.

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