DECODING DEXAMETHASONE'S ANTIEMETIC EFFECT (MECHANISM EXPLAINED) │ EP112

Welcome to the Atomic Anesthesia podcast hosted by CRNA professor Dr. Rhea Temmermand and Co-Founder Sachi Lord. On this show, you'll hear clear, clinically grounded discussions designed for nurse anesthesia residents and CRNAs who want to feel more confident in complex pharmacology, physiology, and real-world anesthesia decision-making.

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In this episode:

Exactly how PONV happens in the brain, no vague "vomiting center" hand wavingAll 5 real mechanisms behind how dexamethasone actually stops nausea and vomitingThe practical dosing, timing, and combination strategy that gets the best PONV prevention

References:

Chu CC, Hsing CH, Shieh JP, Chien CC, Ho CM, Wang JJ. The cellular mechanisms of the antiemetic action of dexamethasone and related glucocorticoids against vomiting. Eur J Pharmacol. 2014;722:48-54.Horn CC, Wallisch WJ, Homanics GE, Williams JP. Pathophysiological and neurochemical mechanisms of postoperative nausea and vomiting. Eur J Pharmacol. 2014;722:55-66.Ho CM, Wu HL, Ho ST, Wang JJ. Dexamethasone prevents postoperative nausea and vomiting: benefit versus risk. Acta Anaesthesiol Taiwan. 2011;49(3):100-104.

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