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Betamethasone does not prevent nausea and vomiting induced by ipecacuanha
Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care.
2004 (English)In: Acta Anaesthesiologica Scandinavica, ISSN 0001-5172, E-ISSN 1399-6576, Vol. 48, no 10, 1283-1286 p.Article in journal (Refereed) Published
Abstract [en]

Background: Corticosteroids reduce the incidence of PONV but the mode of action is not known. The purpose of this study was to evaluate if betamethasone has serotonin (5-HT) antagonistic effects. Ipecacuanha is known to release serotonin and therefore it was used to induce nausea and vomiting. The 5-HT3 antagonist ondansetron was used as a control substance. Methods: In a randomized, double-blind, cross-over, placebo-controlled study 10 healthy male and female volunteers (6 M/4F), mean age 19.5 (18-23) years, mean weight 69.7 (53-84) kg, were studied on three occasions separated by at least 1 week. They were randomly allocated to receive pretreatment with betamethasone 8 mg, ondansetron 8 mg, or normal saline 2 ml as placebo on each occasion, 15 min before oral ingestion of 30 ml of Ipecacuanha syrup. After ingestion of ipecacuanha, vomitings were recorded and the intensity of nausea was estimated with a visual analog scale during 2 h. Results: During the first 2 h after ingestion of ipecacuanha nine of the 10 volunteers vomited both after betamethasone and placebo. No volunteer vomited after ondansetron (P < 0.01 vs. betamethasone and placebo). The max VAS for nausea was significantly higher after betamethasone and placebo compared to ondansetron (P < 0.01). There were no statistically significant differences of the max VAS for nausea between betamethasone and placebo. Conclusion: This study in volunteers has shown that betamethasone does not prevent nausea and vomiting induced by oral intake of ipecacuanha syrup. As ipecacuanha releases 5-hydroxytryptamin, it can be concluded that betamethasone does not have 5-HT3 antagonistic effects.

Place, publisher, year, edition, pages
2004. Vol. 48, no 10, 1283-1286 p.
Keyword [en]
betamethasone, complication, ipecacuanha, nausea, ondansetron, serotonin, vomiting, pharmacology
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-46171DOI: 10.1111/j.1399-6576.2004.00527.xOAI: oai:DiVA.org:liu-46171DiVA: diva2:267067
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13

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Wattwil, Magnus

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